Home / 87,616.64-131,445.72-28,452.32

Finding the Fourth Proportional to 87,616.64, 131,445.72 and 28,452.32

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Solution

The fourth proportional to 87,616.64, 131,445.72 and 28,452.32 is: 42,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,616.64 : 131,445.72 = 28,452.32 : x
  2. Step 2: Convert to fraction form
    87,616.64/131,445.72 = 28,452.32/x
  3. Step 3: Cross multiply
    87,616.64x = 131,445.72 × 28,452.32
  4. Step 4: Simplify right side
    87,616.64x = 3,739,935,688.07
  5. Step 5: Solve for x
    x = 3,739,935,688.07/87,616.64
  6. Step 6: Final answer
    x = 42,685.22

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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.