Home / 71,976.38-107,918.32-29,885.51

Finding the Fourth Proportional to 71,976.38, 107,918.32 and 29,885.51

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Solution

The fourth proportional to 71,976.38, 107,918.32 and 29,885.51 is: 44,809.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,976.38 : 107,918.32 = 29,885.51 : x
  2. Step 2: Convert to fraction form
    71,976.38/107,918.32 = 29,885.51/x
  3. Step 3: Cross multiply
    71,976.38x = 107,918.32 × 29,885.51
  4. Step 4: Simplify right side
    71,976.38x = 3,225,194,031.54
  5. Step 5: Solve for x
    x = 3,225,194,031.54/71,976.38
  6. Step 6: Final answer
    x = 44,809.06

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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.