Home / 87,453.10-120,685.26-49,727.35

Finding the Fourth Proportional to 87,453.10, 120,685.26 and 49,727.35

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Solution

The fourth proportional to 87,453.10, 120,685.26 and 49,727.35 is: 68,623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,453.10 : 120,685.26 = 49,727.35 : x
  2. Step 2: Convert to fraction form
    87,453.10/120,685.26 = 49,727.35/x
  3. Step 3: Cross multiply
    87,453.10x = 120,685.26 × 49,727.35
  4. Step 4: Simplify right side
    87,453.10x = 6,001,357,311.80
  5. Step 5: Solve for x
    x = 6,001,357,311.80/87,453.10
  6. Step 6: Final answer
    x = 68,623.73

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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.