Home / 87,572.47-131,386.26-31,374.28

Finding the Fourth Proportional to 87,572.47, 131,386.26 and 31,374.28

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Solution

The fourth proportional to 87,572.47, 131,386.26 and 31,374.28 is: 47,071.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,572.47 : 131,386.26 = 31,374.28 : x
  2. Step 2: Convert to fraction form
    87,572.47/131,386.26 = 31,374.28/x
  3. Step 3: Cross multiply
    87,572.47x = 131,386.26 × 31,374.28
  4. Step 4: Simplify right side
    87,572.47x = 4,122,149,309.39
  5. Step 5: Solve for x
    x = 4,122,149,309.39/87,572.47
  6. Step 6: Final answer
    x = 47,071.29

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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.