Home / 87,832.88-121,208.55-47,545.61

Finding the Fourth Proportional to 87,832.88, 121,208.55 and 47,545.61

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Solution

The fourth proportional to 87,832.88, 121,208.55 and 47,545.61 is: 65,612.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,832.88 : 121,208.55 = 47,545.61 : x
  2. Step 2: Convert to fraction form
    87,832.88/121,208.55 = 47,545.61/x
  3. Step 3: Cross multiply
    87,832.88x = 121,208.55 × 47,545.61
  4. Step 4: Simplify right side
    87,832.88x = 5,762,934,270.97
  5. Step 5: Solve for x
    x = 5,762,934,270.97/87,832.88
  6. Step 6: Final answer
    x = 65,612.49

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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.