Home / 83,733.60-125,600.40-61,426.20

Finding the Fourth Proportional to 83,733.60, 125,600.40 and 61,426.20

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Solution

The fourth proportional to 83,733.60, 125,600.40 and 61,426.20 is: 92,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,733.60 : 125,600.40 = 61,426.20 : x
  2. Step 2: Convert to fraction form
    83,733.60/125,600.40 = 61,426.20/x
  3. Step 3: Cross multiply
    83,733.60x = 125,600.40 × 61,426.20
  4. Step 4: Simplify right side
    83,733.60x = 7,715,155,290.48
  5. Step 5: Solve for x
    x = 7,715,155,290.48/83,733.60
  6. Step 6: Final answer
    x = 92,139.30

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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.