Home / 87,623.28-131,455.68-28,458.96

Finding the Fourth Proportional to 87,623.28, 131,455.68 and 28,458.96

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Solution

The fourth proportional to 87,623.28, 131,455.68 and 28,458.96 is: 42,695.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,623.28 : 131,455.68 = 28,458.96 : x
  2. Step 2: Convert to fraction form
    87,623.28/131,455.68 = 28,458.96/x
  3. Step 3: Cross multiply
    87,623.28x = 131,455.68 × 28,458.96
  4. Step 4: Simplify right side
    87,623.28x = 3,741,091,938.89
  5. Step 5: Solve for x
    x = 3,741,091,938.89/87,623.28
  6. Step 6: Final answer
    x = 42,695.18

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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.