Home / 78,591.90-117,851.73-25,274.06

Finding the Fourth Proportional to 78,591.90, 117,851.73 and 25,274.06

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Solution

The fourth proportional to 78,591.90, 117,851.73 and 25,274.06 is: 37,899.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,591.90 : 117,851.73 = 25,274.06 : x
  2. Step 2: Convert to fraction form
    78,591.90/117,851.73 = 25,274.06/x
  3. Step 3: Cross multiply
    78,591.90x = 117,851.73 × 25,274.06
  4. Step 4: Simplify right side
    78,591.90x = 2,978,591,453.03
  5. Step 5: Solve for x
    x = 2,978,591,453.03/78,591.90
  6. Step 6: Final answer
    x = 37,899.47

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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.