Home / 71,121.85-98,150.13-39,292.80

Finding the Fourth Proportional to 71,121.85, 98,150.13 and 39,292.80

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Solution

The fourth proportional to 71,121.85, 98,150.13 and 39,292.80 is: 54,225.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,121.85 : 98,150.13 = 39,292.80 : x
  2. Step 2: Convert to fraction form
    71,121.85/98,150.13 = 39,292.80/x
  3. Step 3: Cross multiply
    71,121.85x = 98,150.13 × 39,292.80
  4. Step 4: Simplify right side
    71,121.85x = 3,856,593,060.00
  5. Step 5: Solve for x
    x = 3,856,593,060.00/71,121.85
  6. Step 6: Final answer
    x = 54,225.15

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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.