Home / 54,912.20-75,778.80-29,761.72

Finding the Fourth Proportional to 54,912.20, 75,778.80 and 29,761.72

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Solution

The fourth proportional to 54,912.20, 75,778.80 and 29,761.72 is: 41,071.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,912.20 : 75,778.80 = 29,761.72 : x
  2. Step 2: Convert to fraction form
    54,912.20/75,778.80 = 29,761.72/x
  3. Step 3: Cross multiply
    54,912.20x = 75,778.80 × 29,761.72
  4. Step 4: Simplify right side
    54,912.20x = 2,255,307,427.54
  5. Step 5: Solve for x
    x = 2,255,307,427.54/54,912.20
  6. Step 6: Final answer
    x = 41,071.15

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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.