Home / 75,218.70-112,786.38-30,876.66

Finding the Fourth Proportional to 75,218.70, 112,786.38 and 30,876.66

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Solution

The fourth proportional to 75,218.70, 112,786.38 and 30,876.66 is: 46,297.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,218.70 : 112,786.38 = 30,876.66 : x
  2. Step 2: Convert to fraction form
    75,218.70/112,786.38 = 30,876.66/x
  3. Step 3: Cross multiply
    75,218.70x = 112,786.38 × 30,876.66
  4. Step 4: Simplify right side
    75,218.70x = 3,482,466,707.89
  5. Step 5: Solve for x
    x = 3,482,466,707.89/75,218.70
  6. Step 6: Final answer
    x = 46,297.88

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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.