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Finding the Fourth Proportional to 87,900.92, 131,870.96 and 48,437.72

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Solution

The fourth proportional to 87,900.92, 131,870.96 and 48,437.72 is: 72,667.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,900.92 : 131,870.96 = 48,437.72 : x
  2. Step 2: Convert to fraction form
    87,900.92/131,870.96 = 48,437.72/x
  3. Step 3: Cross multiply
    87,900.92x = 131,870.96 × 48,437.72
  4. Step 4: Simplify right side
    87,900.92x = 6,387,528,636.61
  5. Step 5: Solve for x
    x = 6,387,528,636.61/87,900.92
  6. Step 6: Final answer
    x = 72,667.37

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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.