Home / 71,251.01-98,321.20-39,420.44

Finding the Fourth Proportional to 71,251.01, 98,321.20 and 39,420.44

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Solution

The fourth proportional to 71,251.01, 98,321.20 and 39,420.44 is: 54,397.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,251.01 : 98,321.20 = 39,420.44 : x
  2. Step 2: Convert to fraction form
    71,251.01/98,321.20 = 39,420.44/x
  3. Step 3: Cross multiply
    71,251.01x = 98,321.20 × 39,420.44
  4. Step 4: Simplify right side
    71,251.01x = 3,875,864,965.33
  5. Step 5: Solve for x
    x = 3,875,864,965.33/71,251.01
  6. Step 6: Final answer
    x = 54,397.33

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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.