Home / 80,737.12-121,126.16-25,333.60

Finding the Fourth Proportional to 80,737.12, 121,126.16 and 25,333.60

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Solution

The fourth proportional to 80,737.12, 121,126.16 and 25,333.60 is: 38,006.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,737.12 : 121,126.16 = 25,333.60 : x
  2. Step 2: Convert to fraction form
    80,737.12/121,126.16 = 25,333.60/x
  3. Step 3: Cross multiply
    80,737.12x = 121,126.16 × 25,333.60
  4. Step 4: Simplify right side
    80,737.12x = 3,068,561,686.98
  5. Step 5: Solve for x
    x = 3,068,561,686.98/80,737.12
  6. Step 6: Final answer
    x = 38,006.83

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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.