Home / 74,793.20-112,211.06-30,451.78

Finding the Fourth Proportional to 74,793.20, 112,211.06 and 30,451.78

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Solution

The fourth proportional to 74,793.20, 112,211.06 and 30,451.78 is: 45,686.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,793.20 : 112,211.06 = 30,451.78 : x
  2. Step 2: Convert to fraction form
    74,793.20/112,211.06 = 30,451.78/x
  3. Step 3: Cross multiply
    74,793.20x = 112,211.06 × 30,451.78
  4. Step 4: Simplify right side
    74,793.20x = 3,417,026,512.69
  5. Step 5: Solve for x
    x = 3,417,026,512.69/74,793.20
  6. Step 6: Final answer
    x = 45,686.33

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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.