Home / 89,335.02-123,281.92-49,047.78

Finding the Fourth Proportional to 89,335.02, 123,281.92 and 49,047.78

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Solution

The fourth proportional to 89,335.02, 123,281.92 and 49,047.78 is: 67,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,335.02 : 123,281.92 = 49,047.78 : x
  2. Step 2: Convert to fraction form
    89,335.02/123,281.92 = 49,047.78/x
  3. Step 3: Cross multiply
    89,335.02x = 123,281.92 × 49,047.78
  4. Step 4: Simplify right side
    89,335.02x = 6,046,704,490.14
  5. Step 5: Solve for x
    x = 6,046,704,490.14/89,335.02
  6. Step 6: Final answer
    x = 67,685.71

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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.