Home / 83,729.20-125,593.80-77,824.30

Finding the Fourth Proportional to 83,729.20, 125,593.80 and 77,824.30

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Solution

The fourth proportional to 83,729.20, 125,593.80 and 77,824.30 is: 116,736.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,729.20 : 125,593.80 = 77,824.30 : x
  2. Step 2: Convert to fraction form
    83,729.20/125,593.80 = 77,824.30/x
  3. Step 3: Cross multiply
    83,729.20x = 125,593.80 × 77,824.30
  4. Step 4: Simplify right side
    83,729.20x = 9,774,249,569.34
  5. Step 5: Solve for x
    x = 9,774,249,569.34/83,729.20
  6. Step 6: Final answer
    x = 116,736.45

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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.