Home / 63,059.06-86,972.28-40,400.16

Finding the Fourth Proportional to 63,059.06, 86,972.28 and 40,400.16

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Solution

The fourth proportional to 63,059.06, 86,972.28 and 40,400.16 is: 55,720.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,059.06 : 86,972.28 = 40,400.16 : x
  2. Step 2: Convert to fraction form
    63,059.06/86,972.28 = 40,400.16/x
  3. Step 3: Cross multiply
    63,059.06x = 86,972.28 × 40,400.16
  4. Step 4: Simplify right side
    63,059.06x = 3,513,693,549.92
  5. Step 5: Solve for x
    x = 3,513,693,549.92/63,059.06
  6. Step 6: Final answer
    x = 55,720.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.