Home / 81,841.26-122,775.86-25,670.60

Finding the Fourth Proportional to 81,841.26, 122,775.86 and 25,670.60

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Solution

The fourth proportional to 81,841.26, 122,775.86 and 25,670.60 is: 38,510.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,841.26 : 122,775.86 = 25,670.60 : x
  2. Step 2: Convert to fraction form
    81,841.26/122,775.86 = 25,670.60/x
  3. Step 3: Cross multiply
    81,841.26x = 122,775.86 × 25,670.60
  4. Step 4: Simplify right side
    81,841.26x = 3,151,729,442.01
  5. Step 5: Solve for x
    x = 3,151,729,442.01/81,841.26
  6. Step 6: Final answer
    x = 38,510.28

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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.