Home / 87,638.40-131,470.80-32,230.08

Finding the Fourth Proportional to 87,638.40, 131,470.80 and 32,230.08

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Solution

The fourth proportional to 87,638.40, 131,470.80 and 32,230.08 is: 48,349.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,638.40 : 131,470.80 = 32,230.08 : x
  2. Step 2: Convert to fraction form
    87,638.40/131,470.80 = 32,230.08/x
  3. Step 3: Cross multiply
    87,638.40x = 131,470.80 × 32,230.08
  4. Step 4: Simplify right side
    87,638.40x = 4,237,314,401.66
  5. Step 5: Solve for x
    x = 4,237,314,401.66/87,638.40
  6. Step 6: Final answer
    x = 48,349.97

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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.