Home / 89,770.11-123,882.72-49,484.55

Finding the Fourth Proportional to 89,770.11, 123,882.72 and 49,484.55

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Solution

The fourth proportional to 89,770.11, 123,882.72 and 49,484.55 is: 68,288.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,770.11 : 123,882.72 = 49,484.55 : x
  2. Step 2: Convert to fraction form
    89,770.11/123,882.72 = 49,484.55/x
  3. Step 3: Cross multiply
    89,770.11x = 123,882.72 × 49,484.55
  4. Step 4: Simplify right side
    89,770.11x = 6,130,280,651.98
  5. Step 5: Solve for x
    x = 6,130,280,651.98/89,770.11
  6. Step 6: Final answer
    x = 68,288.66

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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.