Home / 83,384.30-115,069.19-45,658.55

Finding the Fourth Proportional to 83,384.30, 115,069.19 and 45,658.55

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Solution

The fourth proportional to 83,384.30, 115,069.19 and 45,658.55 is: 63,008.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,384.30 : 115,069.19 = 45,658.55 : x
  2. Step 2: Convert to fraction form
    83,384.30/115,069.19 = 45,658.55/x
  3. Step 3: Cross multiply
    83,384.30x = 115,069.19 × 45,658.55
  4. Step 4: Simplify right side
    83,384.30x = 5,253,891,561.44
  5. Step 5: Solve for x
    x = 5,253,891,561.44/83,384.30
  6. Step 6: Final answer
    x = 63,008.17

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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.