Home / 87,261.86-130,771.68-39,760.86

Finding the Fourth Proportional to 87,261.86, 130,771.68 and 39,760.86

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Solution

The fourth proportional to 87,261.86, 130,771.68 and 39,760.86 is: 59,586.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,261.86 : 130,771.68 = 39,760.86 : x
  2. Step 2: Convert to fraction form
    87,261.86/130,771.68 = 39,760.86/x
  3. Step 3: Cross multiply
    87,261.86x = 130,771.68 × 39,760.86
  4. Step 4: Simplify right side
    87,261.86x = 5,199,594,261.64
  5. Step 5: Solve for x
    x = 5,199,594,261.64/87,261.86
  6. Step 6: Final answer
    x = 59,586.11

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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.