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Finding the Fourth Proportional to 71,167.64, 98,216.44 and 39,335.86

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Solution

The fourth proportional to 71,167.64, 98,216.44 and 39,335.86 is: 54,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,167.64 : 98,216.44 = 39,335.86 : x
  2. Step 2: Convert to fraction form
    71,167.64/98,216.44 = 39,335.86/x
  3. Step 3: Cross multiply
    71,167.64x = 98,216.44 × 39,335.86
  4. Step 4: Simplify right side
    71,167.64x = 3,863,428,133.54
  5. Step 5: Solve for x
    x = 3,863,428,133.54/71,167.64
  6. Step 6: Final answer
    x = 54,286.30

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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.