Home / 87,572.09-131,376.60-28,403.16

Finding the Fourth Proportional to 87,572.09, 131,376.60 and 28,403.16

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Solution

The fourth proportional to 87,572.09, 131,376.60 and 28,403.16 is: 42,610.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,572.09 : 131,376.60 = 28,403.16 : x
  2. Step 2: Convert to fraction form
    87,572.09/131,376.60 = 28,403.16/x
  3. Step 3: Cross multiply
    87,572.09x = 131,376.60 × 28,403.16
  4. Step 4: Simplify right side
    87,572.09x = 3,731,510,483.54
  5. Step 5: Solve for x
    x = 3,731,510,483.54/87,572.09
  6. Step 6: Final answer
    x = 42,610.73

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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.