Home / 87,622.53-120,839.70-57,396.82

Finding the Fourth Proportional to 87,622.53, 120,839.70 and 57,396.82

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Solution

The fourth proportional to 87,622.53, 120,839.70 and 57,396.82 is: 79,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,622.53 : 120,839.70 = 57,396.82 : x
  2. Step 2: Convert to fraction form
    87,622.53/120,839.70 = 57,396.82/x
  3. Step 3: Cross multiply
    87,622.53x = 120,839.70 × 57,396.82
  4. Step 4: Simplify right side
    87,622.53x = 6,935,814,326.61
  5. Step 5: Solve for x
    x = 6,935,814,326.61/87,622.53
  6. Step 6: Final answer
    x = 79,155.61

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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.