Home / 78,250.66-117,175.65-43,151.38

Finding the Fourth Proportional to 78,250.66, 117,175.65 and 43,151.38

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Solution

The fourth proportional to 78,250.66, 117,175.65 and 43,151.38 is: 64,616.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,250.66 : 117,175.65 = 43,151.38 : x
  2. Step 2: Convert to fraction form
    78,250.66/117,175.65 = 43,151.38/x
  3. Step 3: Cross multiply
    78,250.66x = 117,175.65 × 43,151.38
  4. Step 4: Simplify right side
    78,250.66x = 5,056,290,999.90
  5. Step 5: Solve for x
    x = 5,056,290,999.90/78,250.66
  6. Step 6: Final answer
    x = 64,616.59

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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.