Home / 74,964.70-112,375.05-43,342.30

Finding the Fourth Proportional to 74,964.70, 112,375.05 and 43,342.30

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Solution

The fourth proportional to 74,964.70, 112,375.05 and 43,342.30 is: 64,971.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,964.70 : 112,375.05 = 43,342.30 : x
  2. Step 2: Convert to fraction form
    74,964.70/112,375.05 = 43,342.30/x
  3. Step 3: Cross multiply
    74,964.70x = 112,375.05 × 43,342.30
  4. Step 4: Simplify right side
    74,964.70x = 4,870,593,129.62
  5. Step 5: Solve for x
    x = 4,870,593,129.62/74,964.70
  6. Step 6: Final answer
    x = 64,971.82

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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.