Home / 78,972.19-108,981.42-43,162.44

Finding the Fourth Proportional to 78,972.19, 108,981.42 and 43,162.44

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Solution

The fourth proportional to 78,972.19, 108,981.42 and 43,162.44 is: 59,564.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,972.19 : 108,981.42 = 43,162.44 : x
  2. Step 2: Convert to fraction form
    78,972.19/108,981.42 = 43,162.44/x
  3. Step 3: Cross multiply
    78,972.19x = 108,981.42 × 43,162.44
  4. Step 4: Simplify right side
    78,972.19x = 4,703,904,044.35
  5. Step 5: Solve for x
    x = 4,703,904,044.35/78,972.19
  6. Step 6: Final answer
    x = 59,564.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.