Home / 87,569.28-131,338.56-28,396.32

Finding the Fourth Proportional to 87,569.28, 131,338.56 and 28,396.32

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Solution

The fourth proportional to 87,569.28, 131,338.56 and 28,396.32 is: 42,589.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,569.28 : 131,338.56 = 28,396.32 : x
  2. Step 2: Convert to fraction form
    87,569.28/131,338.56 = 28,396.32/x
  3. Step 3: Cross multiply
    87,569.28x = 131,338.56 × 28,396.32
  4. Step 4: Simplify right side
    87,569.28x = 3,729,531,778.10
  5. Step 5: Solve for x
    x = 3,729,531,778.10/87,569.28
  6. Step 6: Final answer
    x = 42,589.50

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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.