Home / 51,519.30-71,099.31-28,856.97

Finding the Fourth Proportional to 51,519.30, 71,099.31 and 28,856.97

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Solution

The fourth proportional to 51,519.30, 71,099.31 and 28,856.97 is: 39,824.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,519.30 : 71,099.31 = 28,856.97 : x
  2. Step 2: Convert to fraction form
    51,519.30/71,099.31 = 28,856.97/x
  3. Step 3: Cross multiply
    51,519.30x = 71,099.31 × 28,856.97
  4. Step 4: Simplify right side
    51,519.30x = 2,051,710,155.91
  5. Step 5: Solve for x
    x = 2,051,710,155.91/51,519.30
  6. Step 6: Final answer
    x = 39,824.11

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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.