Home / 78,380.13-108,164.61-44,388.63

Finding the Fourth Proportional to 78,380.13, 108,164.61 and 44,388.63

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Solution

The fourth proportional to 78,380.13, 108,164.61 and 44,388.63 is: 61,256.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,380.13 : 108,164.61 = 44,388.63 : x
  2. Step 2: Convert to fraction form
    78,380.13/108,164.61 = 44,388.63/x
  3. Step 3: Cross multiply
    78,380.13x = 108,164.61 × 44,388.63
  4. Step 4: Simplify right side
    78,380.13x = 4,801,278,089.62
  5. Step 5: Solve for x
    x = 4,801,278,089.62/78,380.13
  6. Step 6: Final answer
    x = 61,256.32

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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.