Home / 71,449.90-98,600.70-39,617.98

Finding the Fourth Proportional to 71,449.90, 98,600.70 and 39,617.98

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Solution

The fourth proportional to 71,449.90, 98,600.70 and 39,617.98 is: 54,672.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,449.90 : 98,600.70 = 39,617.98 : x
  2. Step 2: Convert to fraction form
    71,449.90/98,600.70 = 39,617.98/x
  3. Step 3: Cross multiply
    71,449.90x = 98,600.70 × 39,617.98
  4. Step 4: Simplify right side
    71,449.90x = 3,906,360,560.59
  5. Step 5: Solve for x
    x = 3,906,360,560.59/71,449.90
  6. Step 6: Final answer
    x = 54,672.72

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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.