Home / 87,960.52-121,385.96-51,686.43

Finding the Fourth Proportional to 87,960.52, 121,385.96 and 51,686.43

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Solution

The fourth proportional to 87,960.52, 121,385.96 and 51,686.43 is: 71,327.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,960.52 : 121,385.96 = 51,686.43 : x
  2. Step 2: Convert to fraction form
    87,960.52/121,385.96 = 51,686.43/x
  3. Step 3: Cross multiply
    87,960.52x = 121,385.96 × 51,686.43
  4. Step 4: Simplify right side
    87,960.52x = 6,274,006,924.52
  5. Step 5: Solve for x
    x = 6,274,006,924.52/87,960.52
  6. Step 6: Final answer
    x = 71,327.53

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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.