Home / 87,116.52-120,214.02-49,396.84

Finding the Fourth Proportional to 87,116.52, 120,214.02 and 49,396.84

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Solution

The fourth proportional to 87,116.52, 120,214.02 and 49,396.84 is: 68,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,116.52 : 120,214.02 = 49,396.84 : x
  2. Step 2: Convert to fraction form
    87,116.52/120,214.02 = 49,396.84/x
  3. Step 3: Cross multiply
    87,116.52x = 120,214.02 × 49,396.84
  4. Step 4: Simplify right side
    87,116.52x = 5,938,192,711.70
  5. Step 5: Solve for x
    x = 5,938,192,711.70/87,116.52
  6. Step 6: Final answer
    x = 68,163.80

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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.