Home / 71,449.11-98,604.19-39,618.01

Finding the Fourth Proportional to 71,449.11, 98,604.19 and 39,618.01

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Solution

The fourth proportional to 71,449.11, 98,604.19 and 39,618.01 is: 54,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,449.11 : 98,604.19 = 39,618.01 : x
  2. Step 2: Convert to fraction form
    71,449.11/98,604.19 = 39,618.01/x
  3. Step 3: Cross multiply
    71,449.11x = 98,604.19 × 39,618.01
  4. Step 4: Simplify right side
    71,449.11x = 3,906,501,292.44
  5. Step 5: Solve for x
    x = 3,906,501,292.44/71,449.11
  6. Step 6: Final answer
    x = 54,675.30

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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.