Home / 78,397.42-117,593.28-22,237.31

Finding the Fourth Proportional to 78,397.42, 117,593.28 and 22,237.31

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Solution

The fourth proportional to 78,397.42, 117,593.28 and 22,237.31 is: 33,355.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,397.42 : 117,593.28 = 22,237.31 : x
  2. Step 2: Convert to fraction form
    78,397.42/117,593.28 = 22,237.31/x
  3. Step 3: Cross multiply
    78,397.42x = 117,593.28 × 22,237.31
  4. Step 4: Simplify right side
    78,397.42x = 2,614,958,215.80
  5. Step 5: Solve for x
    x = 2,614,958,215.80/78,397.42
  6. Step 6: Final answer
    x = 33,355.16

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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.