Home / 87,824.80-131,737.20-28,646.20

Finding the Fourth Proportional to 87,824.80, 131,737.20 and 28,646.20

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Solution

The fourth proportional to 87,824.80, 131,737.20 and 28,646.20 is: 42,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,824.80 : 131,737.20 = 28,646.20 : x
  2. Step 2: Convert to fraction form
    87,824.80/131,737.20 = 28,646.20/x
  3. Step 3: Cross multiply
    87,824.80x = 131,737.20 × 28,646.20
  4. Step 4: Simplify right side
    87,824.80x = 3,773,770,178.64
  5. Step 5: Solve for x
    x = 3,773,770,178.64/87,824.80
  6. Step 6: Final answer
    x = 42,969.30

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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.