Home / 51,479.28-71,040.66-28,817.88

Finding the Fourth Proportional to 51,479.28, 71,040.66 and 28,817.88

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Solution

The fourth proportional to 51,479.28, 71,040.66 and 28,817.88 is: 39,768.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,479.28 : 71,040.66 = 28,817.88 : x
  2. Step 2: Convert to fraction form
    51,479.28/71,040.66 = 28,817.88/x
  3. Step 3: Cross multiply
    51,479.28x = 71,040.66 × 28,817.88
  4. Step 4: Simplify right side
    51,479.28x = 2,047,241,215.00
  5. Step 5: Solve for x
    x = 2,047,241,215.00/51,479.28
  6. Step 6: Final answer
    x = 39,768.26

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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.