Home / 87,506.40-131,065.20-45,904.80

Finding the Fourth Proportional to 87,506.40, 131,065.20 and 45,904.80

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Solution

The fourth proportional to 87,506.40, 131,065.20 and 45,904.80 is: 68,755.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,506.40 : 131,065.20 = 45,904.80 : x
  2. Step 2: Convert to fraction form
    87,506.40/131,065.20 = 45,904.80/x
  3. Step 3: Cross multiply
    87,506.40x = 131,065.20 × 45,904.80
  4. Step 4: Simplify right side
    87,506.40x = 6,016,521,792.96
  5. Step 5: Solve for x
    x = 6,016,521,792.96/87,506.40
  6. Step 6: Final answer
    x = 68,755.22

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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.