Home / 87,572.65-131,377.44-28,403.72

Finding the Fourth Proportional to 87,572.65, 131,377.44 and 28,403.72

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Solution

The fourth proportional to 87,572.65, 131,377.44 and 28,403.72 is: 42,611.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,572.65 : 131,377.44 = 28,403.72 : x
  2. Step 2: Convert to fraction form
    87,572.65/131,377.44 = 28,403.72/x
  3. Step 3: Cross multiply
    87,572.65x = 131,377.44 × 28,403.72
  4. Step 4: Simplify right side
    87,572.65x = 3,731,608,020.08
  5. Step 5: Solve for x
    x = 3,731,608,020.08/87,572.65
  6. Step 6: Final answer
    x = 42,611.57

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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.