Home / 87,082.74-130,643.64-27,921.96

Finding the Fourth Proportional to 87,082.74, 130,643.64 and 27,921.96

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Solution

The fourth proportional to 87,082.74, 130,643.64 and 27,921.96 is: 41,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,082.74 : 130,643.64 = 27,921.96 : x
  2. Step 2: Convert to fraction form
    87,082.74/130,643.64 = 27,921.96/x
  3. Step 3: Cross multiply
    87,082.74x = 130,643.64 × 27,921.96
  4. Step 4: Simplify right side
    87,082.74x = 3,647,826,490.33
  5. Step 5: Solve for x
    x = 3,647,826,490.33/87,082.74
  6. Step 6: Final answer
    x = 41,889.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.