Home / 74,716.89-112,141.10-39,203.61

Finding the Fourth Proportional to 74,716.89, 112,141.10 and 39,203.61

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Solution

The fourth proportional to 74,716.89, 112,141.10 and 39,203.61 is: 58,839.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,716.89 : 112,141.10 = 39,203.61 : x
  2. Step 2: Convert to fraction form
    74,716.89/112,141.10 = 39,203.61/x
  3. Step 3: Cross multiply
    74,716.89x = 112,141.10 × 39,203.61
  4. Step 4: Simplify right side
    74,716.89x = 4,396,335,949.37
  5. Step 5: Solve for x
    x = 4,396,335,949.37/74,716.89
  6. Step 6: Final answer
    x = 58,839.92

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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.