Home / 87,423.04-120,659.28-51,610.72

Finding the Fourth Proportional to 87,423.04, 120,659.28 and 51,610.72

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Solution

The fourth proportional to 87,423.04, 120,659.28 and 51,610.72 is: 71,231.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,423.04 : 120,659.28 = 51,610.72 : x
  2. Step 2: Convert to fraction form
    87,423.04/120,659.28 = 51,610.72/x
  3. Step 3: Cross multiply
    87,423.04x = 120,659.28 × 51,610.72
  4. Step 4: Simplify right side
    87,423.04x = 6,227,312,315.48
  5. Step 5: Solve for x
    x = 6,227,312,315.48/87,423.04
  6. Step 6: Final answer
    x = 71,231.94

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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.