Home / 55,174.13-82,761.19-13,621.13

Finding the Fourth Proportional to 55,174.13, 82,761.19 and 13,621.13

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Solution

The fourth proportional to 55,174.13, 82,761.19 and 13,621.13 is: 20,431.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,174.13 : 82,761.19 = 13,621.13 : x
  2. Step 2: Convert to fraction form
    55,174.13/82,761.19 = 13,621.13/x
  3. Step 3: Cross multiply
    55,174.13x = 82,761.19 × 13,621.13
  4. Step 4: Simplify right side
    55,174.13x = 1,127,300,927.94
  5. Step 5: Solve for x
    x = 1,127,300,927.94/55,174.13
  6. Step 6: Final answer
    x = 20,431.69

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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.