Home / 71,181.28-98,229.12-39,349.52

Finding the Fourth Proportional to 71,181.28, 98,229.12 and 39,349.52

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Solution

The fourth proportional to 71,181.28, 98,229.12 and 39,349.52 is: 54,301.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,181.28 : 98,229.12 = 39,349.52 : x
  2. Step 2: Convert to fraction form
    71,181.28/98,229.12 = 39,349.52/x
  3. Step 3: Cross multiply
    71,181.28x = 98,229.12 × 39,349.52
  4. Step 4: Simplify right side
    71,181.28x = 3,865,268,722.02
  5. Step 5: Solve for x
    x = 3,865,268,722.02/71,181.28
  6. Step 6: Final answer
    x = 54,301.76

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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.