Home / 71,086.82-98,097.90-39,255.04

Finding the Fourth Proportional to 71,086.82, 98,097.90 and 39,255.04

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Solution

The fourth proportional to 71,086.82, 98,097.90 and 39,255.04 is: 54,170.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,086.82 : 98,097.90 = 39,255.04 : x
  2. Step 2: Convert to fraction form
    71,086.82/98,097.90 = 39,255.04/x
  3. Step 3: Cross multiply
    71,086.82x = 98,097.90 × 39,255.04
  4. Step 4: Simplify right side
    71,086.82x = 3,850,836,988.42
  5. Step 5: Solve for x
    x = 3,850,836,988.42/71,086.82
  6. Step 6: Final answer
    x = 54,170.90

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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.