Home / 71,981.55-107,972.33-63,670.95

Finding the Fourth Proportional to 71,981.55, 107,972.33 and 63,670.95

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Solution

The fourth proportional to 71,981.55, 107,972.33 and 63,670.95 is: 95,506.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,981.55 : 107,972.33 = 63,670.95 : x
  2. Step 2: Convert to fraction form
    71,981.55/107,972.33 = 63,670.95/x
  3. Step 3: Cross multiply
    71,981.55x = 107,972.33 × 63,670.95
  4. Step 4: Simplify right side
    71,981.55x = 6,874,700,506.46
  5. Step 5: Solve for x
    x = 6,874,700,506.46/71,981.55
  6. Step 6: Final answer
    x = 95,506.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.