Home / 87,732.01-121,082.13-53,742.38

Finding the Fourth Proportional to 87,732.01, 121,082.13 and 53,742.38

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Solution

The fourth proportional to 87,732.01, 121,082.13 and 53,742.38 is: 74,171.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,732.01 : 121,082.13 = 53,742.38 : x
  2. Step 2: Convert to fraction form
    87,732.01/121,082.13 = 53,742.38/x
  3. Step 3: Cross multiply
    87,732.01x = 121,082.13 × 53,742.38
  4. Step 4: Simplify right side
    87,732.01x = 6,507,241,572.96
  5. Step 5: Solve for x
    x = 6,507,241,572.96/87,732.01
  6. Step 6: Final answer
    x = 74,171.81

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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.