Home / 87,248.43-120,372.14-57,051.43

Finding the Fourth Proportional to 87,248.43, 120,372.14 and 57,051.43

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Solution

The fourth proportional to 87,248.43, 120,372.14 and 57,051.43 is: 78,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,248.43 : 120,372.14 = 57,051.43 : x
  2. Step 2: Convert to fraction form
    87,248.43/120,372.14 = 57,051.43/x
  3. Step 3: Cross multiply
    87,248.43x = 120,372.14 × 57,051.43
  4. Step 4: Simplify right side
    87,248.43x = 6,867,402,560.86
  5. Step 5: Solve for x
    x = 6,867,402,560.86/87,248.43
  6. Step 6: Final answer
    x = 78,710.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.