Home / 87,569.23-131,372.28-28,400.28

Finding the Fourth Proportional to 87,569.23, 131,372.28 and 28,400.28

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Solution

The fourth proportional to 87,569.23, 131,372.28 and 28,400.28 is: 42,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,569.23 : 131,372.28 = 28,400.28 : x
  2. Step 2: Convert to fraction form
    87,569.23/131,372.28 = 28,400.28/x
  3. Step 3: Cross multiply
    87,569.23x = 131,372.28 × 28,400.28
  4. Step 4: Simplify right side
    87,569.23x = 3,731,008,879.38
  5. Step 5: Solve for x
    x = 3,731,008,879.38/87,569.23
  6. Step 6: Final answer
    x = 42,606.39

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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.