Home / 87,134.56-120,227.04-51,311.44

Finding the Fourth Proportional to 87,134.56, 120,227.04 and 51,311.44

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Solution

The fourth proportional to 87,134.56, 120,227.04 and 51,311.44 is: 70,798.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,134.56 : 120,227.04 = 51,311.44 : x
  2. Step 2: Convert to fraction form
    87,134.56/120,227.04 = 51,311.44/x
  3. Step 3: Cross multiply
    87,134.56x = 120,227.04 × 51,311.44
  4. Step 4: Simplify right side
    87,134.56x = 6,169,022,549.34
  5. Step 5: Solve for x
    x = 6,169,022,549.34/87,134.56
  6. Step 6: Final answer
    x = 70,798.80

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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.