Home / 89,808.12-123,932.55-49,521.87

Finding the Fourth Proportional to 89,808.12, 123,932.55 and 49,521.87

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Solution

The fourth proportional to 89,808.12, 123,932.55 and 49,521.87 is: 68,338.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,808.12 : 123,932.55 = 49,521.87 : x
  2. Step 2: Convert to fraction form
    89,808.12/123,932.55 = 49,521.87/x
  3. Step 3: Cross multiply
    89,808.12x = 123,932.55 × 49,521.87
  4. Step 4: Simplify right side
    89,808.12x = 6,137,371,629.87
  5. Step 5: Solve for x
    x = 6,137,371,629.87/89,808.12
  6. Step 6: Final answer
    x = 68,338.72

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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.