Home / 54,768.13-82,152.20-13,215.13

Finding the Fourth Proportional to 54,768.13, 82,152.20 and 13,215.13

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Solution

The fourth proportional to 54,768.13, 82,152.20 and 13,215.13 is: 19,822.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,768.13 : 82,152.20 = 13,215.13 : x
  2. Step 2: Convert to fraction form
    54,768.13/82,152.20 = 13,215.13/x
  3. Step 3: Cross multiply
    54,768.13x = 82,152.20 × 13,215.13
  4. Step 4: Simplify right side
    54,768.13x = 1,085,651,525.95
  5. Step 5: Solve for x
    x = 1,085,651,525.95/54,768.13
  6. Step 6: Final answer
    x = 19,822.69

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Half scale
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Double scale
Find fourth proportional to 54,769.13, 82,153.70 and 13,216.13
Similar ratio
Find fourth proportional to 82,152.19, 123,228.29 and 19,822.69
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.