Home / 89,177.31-123,064.67-48,890.21

Finding the Fourth Proportional to 89,177.31, 123,064.67 and 48,890.21

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Solution

The fourth proportional to 89,177.31, 123,064.67 and 48,890.21 is: 67,468.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,177.31 : 123,064.67 = 48,890.21 : x
  2. Step 2: Convert to fraction form
    89,177.31/123,064.67 = 48,890.21/x
  3. Step 3: Cross multiply
    89,177.31x = 123,064.67 × 48,890.21
  4. Step 4: Simplify right side
    89,177.31x = 6,016,656,700.11
  5. Step 5: Solve for x
    x = 6,016,656,700.11/89,177.31
  6. Step 6: Final answer
    x = 67,468.47

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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.