Home / 89,684.48-123,765.40-49,399.64

Finding the Fourth Proportional to 89,684.48, 123,765.40 and 49,399.64

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Solution

The fourth proportional to 89,684.48, 123,765.40 and 49,399.64 is: 68,171.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,684.48 : 123,765.40 = 49,399.64 : x
  2. Step 2: Convert to fraction form
    89,684.48/123,765.40 = 49,399.64/x
  3. Step 3: Cross multiply
    89,684.48x = 123,765.40 × 49,399.64
  4. Step 4: Simplify right side
    89,684.48x = 6,113,966,204.46
  5. Step 5: Solve for x
    x = 6,113,966,204.46/89,684.48
  6. Step 6: Final answer
    x = 68,171.95

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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.