Home / 87,422.04-120,657.90-51,609.72

Finding the Fourth Proportional to 87,422.04, 120,657.90 and 51,609.72

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Solution

The fourth proportional to 87,422.04, 120,657.90 and 51,609.72 is: 71,230.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,422.04 : 120,657.90 = 51,609.72 : x
  2. Step 2: Convert to fraction form
    87,422.04/120,657.90 = 51,609.72/x
  3. Step 3: Cross multiply
    87,422.04x = 120,657.90 × 51,609.72
  4. Step 4: Simplify right side
    87,422.04x = 6,227,120,434.79
  5. Step 5: Solve for x
    x = 6,227,120,434.79/87,422.04
  6. Step 6: Final answer
    x = 71,230.56

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1.5x scale

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.