Home / 87,133.85-130,832.00-49,736.15

Finding the Fourth Proportional to 87,133.85, 130,832.00 and 49,736.15

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Solution

The fourth proportional to 87,133.85, 130,832.00 and 49,736.15 is: 74,679.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,133.85 : 130,832.00 = 49,736.15 : x
  2. Step 2: Convert to fraction form
    87,133.85/130,832.00 = 49,736.15/x
  3. Step 3: Cross multiply
    87,133.85x = 130,832.00 × 49,736.15
  4. Step 4: Simplify right side
    87,133.85x = 6,507,079,073.96
  5. Step 5: Solve for x
    x = 6,507,079,073.96/87,133.85
  6. Step 6: Final answer
    x = 74,679.12

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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.