Home / 75,243.20-112,865.76-51,863.36

Finding the Fourth Proportional to 75,243.20, 112,865.76 and 51,863.36

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Solution

The fourth proportional to 75,243.20, 112,865.76 and 51,863.36 is: 77,795.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,243.20 : 112,865.76 = 51,863.36 : x
  2. Step 2: Convert to fraction form
    75,243.20/112,865.76 = 51,863.36/x
  3. Step 3: Cross multiply
    75,243.20x = 112,865.76 × 51,863.36
  4. Step 4: Simplify right side
    75,243.20x = 5,853,597,542.55
  5. Step 5: Solve for x
    x = 5,853,597,542.55/75,243.20
  6. Step 6: Final answer
    x = 77,795.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.