Home / 78,169.15-107,878.33-44,179.22

Finding the Fourth Proportional to 78,169.15, 107,878.33 and 44,179.22

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Solution

The fourth proportional to 78,169.15, 107,878.33 and 44,179.22 is: 60,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,169.15 : 107,878.33 = 44,179.22 : x
  2. Step 2: Convert to fraction form
    78,169.15/107,878.33 = 44,179.22/x
  3. Step 3: Cross multiply
    78,169.15x = 107,878.33 × 44,179.22
  4. Step 4: Simplify right side
    78,169.15x = 4,765,980,799.22
  5. Step 5: Solve for x
    x = 4,765,980,799.22/78,169.15
  6. Step 6: Final answer
    x = 60,970.10

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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.