Home / 78,546.88-117,842.28-25,993.36

Finding the Fourth Proportional to 78,546.88, 117,842.28 and 25,993.36

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Solution

The fourth proportional to 78,546.88, 117,842.28 and 25,993.36 is: 38,997.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,546.88 : 117,842.28 = 25,993.36 : x
  2. Step 2: Convert to fraction form
    78,546.88/117,842.28 = 25,993.36/x
  3. Step 3: Cross multiply
    78,546.88x = 117,842.28 × 25,993.36
  4. Step 4: Simplify right side
    78,546.88x = 3,063,116,807.26
  5. Step 5: Solve for x
    x = 3,063,116,807.26/78,546.88
  6. Step 6: Final answer
    x = 38,997.31

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1.5x scale

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.