Home / 89,766.90-123,872.70-49,478.46

Finding the Fourth Proportional to 89,766.90, 123,872.70 and 49,478.46

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Solution

The fourth proportional to 89,766.90, 123,872.70 and 49,478.46 is: 68,277.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,766.90 : 123,872.70 = 49,478.46 : x
  2. Step 2: Convert to fraction form
    89,766.90/123,872.70 = 49,478.46/x
  3. Step 3: Cross multiply
    89,766.90x = 123,872.70 × 49,478.46
  4. Step 4: Simplify right side
    89,766.90x = 6,129,030,432.04
  5. Step 5: Solve for x
    x = 6,129,030,432.04/89,766.90
  6. Step 6: Final answer
    x = 68,277.18

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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.