Home / 55,173.13-82,759.69-13,620.13

Finding the Fourth Proportional to 55,173.13, 82,759.69 and 13,620.13

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Solution

The fourth proportional to 55,173.13, 82,759.69 and 13,620.13 is: 20,430.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,173.13 : 82,759.69 = 13,620.13 : x
  2. Step 2: Convert to fraction form
    55,173.13/82,759.69 = 13,620.13/x
  3. Step 3: Cross multiply
    55,173.13x = 82,759.69 × 13,620.13
  4. Step 4: Simplify right side
    55,173.13x = 1,127,197,736.56
  5. Step 5: Solve for x
    x = 1,127,197,736.56/55,173.13
  6. Step 6: Final answer
    x = 20,430.19

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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.