Home / 47,650.29-65,728.80-31,517.97

Finding the Fourth Proportional to 47,650.29, 65,728.80 and 31,517.97

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Solution

The fourth proportional to 47,650.29, 65,728.80 and 31,517.97 is: 43,475.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,650.29 : 65,728.80 = 31,517.97 : x
  2. Step 2: Convert to fraction form
    47,650.29/65,728.80 = 31,517.97/x
  3. Step 3: Cross multiply
    47,650.29x = 65,728.80 × 31,517.97
  4. Step 4: Simplify right side
    47,650.29x = 2,071,638,346.54
  5. Step 5: Solve for x
    x = 2,071,638,346.54/47,650.29
  6. Step 6: Final answer
    x = 43,475.88

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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.