Home / 87,737.32-131,615.20-28,577.60

Finding the Fourth Proportional to 87,737.32, 131,615.20 and 28,577.60

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Solution

The fourth proportional to 87,737.32, 131,615.20 and 28,577.60 is: 42,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,737.32 : 131,615.20 = 28,577.60 : x
  2. Step 2: Convert to fraction form
    87,737.32/131,615.20 = 28,577.60/x
  3. Step 3: Cross multiply
    87,737.32x = 131,615.20 × 28,577.60
  4. Step 4: Simplify right side
    87,737.32x = 3,761,246,539.52
  5. Step 5: Solve for x
    x = 3,761,246,539.52/87,737.32
  6. Step 6: Final answer
    x = 42,869.40

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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.