Home / 78,151.33-117,241.40-25,563.73

Finding the Fourth Proportional to 78,151.33, 117,241.40 and 25,563.73

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Solution

The fourth proportional to 78,151.33, 117,241.40 and 25,563.73 is: 38,350.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,151.33 : 117,241.40 = 25,563.73 : x
  2. Step 2: Convert to fraction form
    78,151.33/117,241.40 = 25,563.73/x
  3. Step 3: Cross multiply
    78,151.33x = 117,241.40 × 25,563.73
  4. Step 4: Simplify right side
    78,151.33x = 2,997,127,366.60
  5. Step 5: Solve for x
    x = 2,997,127,366.60/78,151.33
  6. Step 6: Final answer
    x = 38,350.31

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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.