Home / 86,540.36-129,921.26-73,475.73

Finding the Fourth Proportional to 86,540.36, 129,921.26 and 73,475.73

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Solution

The fourth proportional to 86,540.36, 129,921.26 and 73,475.73 is: 110,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,540.36 : 129,921.26 = 73,475.73 : x
  2. Step 2: Convert to fraction form
    86,540.36/129,921.26 = 73,475.73/x
  3. Step 3: Cross multiply
    86,540.36x = 129,921.26 × 73,475.73
  4. Step 4: Simplify right side
    86,540.36x = 9,546,059,053.64
  5. Step 5: Solve for x
    x = 9,546,059,053.64/86,540.36
  6. Step 6: Final answer
    x = 110,307.60

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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.