Home / 89,766.78-123,881.13-49,482.06

Finding the Fourth Proportional to 89,766.78, 123,881.13 and 49,482.06

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Solution

The fourth proportional to 89,766.78, 123,881.13 and 49,482.06 is: 68,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,766.78 : 123,881.13 = 49,482.06 : x
  2. Step 2: Convert to fraction form
    89,766.78/123,881.13 = 49,482.06/x
  3. Step 3: Cross multiply
    89,766.78x = 123,881.13 × 49,482.06
  4. Step 4: Simplify right side
    89,766.78x = 6,129,893,507.53
  5. Step 5: Solve for x
    x = 6,129,893,507.53/89,766.78
  6. Step 6: Final answer
    x = 68,286.88

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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.