Home / 87,087.95-120,186.13-48,859.61

Finding the Fourth Proportional to 87,087.95, 120,186.13 and 48,859.61

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Solution

The fourth proportional to 87,087.95, 120,186.13 and 48,859.61 is: 67,428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,087.95 : 120,186.13 = 48,859.61 : x
  2. Step 2: Convert to fraction form
    87,087.95/120,186.13 = 48,859.61/x
  3. Step 3: Cross multiply
    87,087.95x = 120,186.13 × 48,859.61
  4. Step 4: Simplify right side
    87,087.95x = 5,872,246,716.13
  5. Step 5: Solve for x
    x = 5,872,246,716.13/87,087.95
  6. Step 6: Final answer
    x = 67,428.92

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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.