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Finding the Fourth Proportional to 87,601.20, 131,401.80 and 35,048.40

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Solution

The fourth proportional to 87,601.20, 131,401.80 and 35,048.40 is: 52,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,601.20 : 131,401.80 = 35,048.40 : x
  2. Step 2: Convert to fraction form
    87,601.20/131,401.80 = 35,048.40/x
  3. Step 3: Cross multiply
    87,601.20x = 131,401.80 × 35,048.40
  4. Step 4: Simplify right side
    87,601.20x = 4,605,422,847.12
  5. Step 5: Solve for x
    x = 4,605,422,847.12/87,601.20
  6. Step 6: Final answer
    x = 52,572.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.