Home / 79,868.20-110,253.54-51,587.68

Finding the Fourth Proportional to 79,868.20, 110,253.54 and 51,587.68

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Solution

The fourth proportional to 79,868.20, 110,253.54 and 51,587.68 is: 71,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,868.20 : 110,253.54 = 51,587.68 : x
  2. Step 2: Convert to fraction form
    79,868.20/110,253.54 = 51,587.68/x
  3. Step 3: Cross multiply
    79,868.20x = 110,253.54 × 51,587.68
  4. Step 4: Simplify right side
    79,868.20x = 5,687,724,340.39
  5. Step 5: Solve for x
    x = 5,687,724,340.39/79,868.20
  6. Step 6: Final answer
    x = 71,213.88

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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.