Home / 87,801.74-131,689.24-28,637.32

Finding the Fourth Proportional to 87,801.74, 131,689.24 and 28,637.32

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Solution

The fourth proportional to 87,801.74, 131,689.24 and 28,637.32 is: 42,951.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,801.74 : 131,689.24 = 28,637.32 : x
  2. Step 2: Convert to fraction form
    87,801.74/131,689.24 = 28,637.32/x
  3. Step 3: Cross multiply
    87,801.74x = 131,689.24 × 28,637.32
  4. Step 4: Simplify right side
    87,801.74x = 3,771,226,906.44
  5. Step 5: Solve for x
    x = 3,771,226,906.44/87,801.74
  6. Step 6: Final answer
    x = 42,951.62

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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.