Home / 71,546.20-98,728.82-39,712.59

Finding the Fourth Proportional to 71,546.20, 98,728.82 and 39,712.59

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Solution

The fourth proportional to 71,546.20, 98,728.82 and 39,712.59 is: 54,800.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,546.20 : 98,728.82 = 39,712.59 : x
  2. Step 2: Convert to fraction form
    71,546.20/98,728.82 = 39,712.59/x
  3. Step 3: Cross multiply
    71,546.20x = 98,728.82 × 39,712.59
  4. Step 4: Simplify right side
    71,546.20x = 3,920,777,470.44
  5. Step 5: Solve for x
    x = 3,920,777,470.44/71,546.20
  6. Step 6: Final answer
    x = 54,800.64

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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.