Home / 71,287.27-98,375.23-39,455.48

Finding the Fourth Proportional to 71,287.27, 98,375.23 and 39,455.48

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Solution

The fourth proportional to 71,287.27, 98,375.23 and 39,455.48 is: 54,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,287.27 : 98,375.23 = 39,455.48 : x
  2. Step 2: Convert to fraction form
    71,287.27/98,375.23 = 39,455.48/x
  3. Step 3: Cross multiply
    71,287.27x = 98,375.23 × 39,455.48
  4. Step 4: Simplify right side
    71,287.27x = 3,881,441,919.76
  5. Step 5: Solve for x
    x = 3,881,441,919.76/71,287.27
  6. Step 6: Final answer
    x = 54,447.90

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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.