Home / 51,921.28-71,641.92-29,560.96

Finding the Fourth Proportional to 51,921.28, 71,641.92 and 29,560.96

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Solution

The fourth proportional to 51,921.28, 71,641.92 and 29,560.96 is: 40,788.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,921.28 : 71,641.92 = 29,560.96 : x
  2. Step 2: Convert to fraction form
    51,921.28/71,641.92 = 29,560.96/x
  3. Step 3: Cross multiply
    51,921.28x = 71,641.92 × 29,560.96
  4. Step 4: Simplify right side
    51,921.28x = 2,117,803,931.44
  5. Step 5: Solve for x
    x = 2,117,803,931.44/51,921.28
  6. Step 6: Final answer
    x = 40,788.75

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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.