Home / 74,876.56-112,135.69-43,220.76

Finding the Fourth Proportional to 74,876.56, 112,135.69 and 43,220.76

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Solution

The fourth proportional to 74,876.56, 112,135.69 and 43,220.76 is: 64,727.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,876.56 : 112,135.69 = 43,220.76 : x
  2. Step 2: Convert to fraction form
    74,876.56/112,135.69 = 43,220.76/x
  3. Step 3: Cross multiply
    74,876.56x = 112,135.69 × 43,220.76
  4. Step 4: Simplify right side
    74,876.56x = 4,846,589,614.98
  5. Step 5: Solve for x
    x = 4,846,589,614.98/74,876.56
  6. Step 6: Final answer
    x = 64,727.73

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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.