Home / 87,401.28-120,613.38-49,675.50

Finding the Fourth Proportional to 87,401.28, 120,613.38 and 49,675.50

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Solution

The fourth proportional to 87,401.28, 120,613.38 and 49,675.50 is: 68,551.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,401.28 : 120,613.38 = 49,675.50 : x
  2. Step 2: Convert to fraction form
    87,401.28/120,613.38 = 49,675.50/x
  3. Step 3: Cross multiply
    87,401.28x = 120,613.38 × 49,675.50
  4. Step 4: Simplify right side
    87,401.28x = 5,991,529,958.19
  5. Step 5: Solve for x
    x = 5,991,529,958.19/87,401.28
  6. Step 6: Final answer
    x = 68,551.97

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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.