Home / 82,122.60-113,329.71-51,921.54

Finding the Fourth Proportional to 82,122.60, 113,329.71 and 51,921.54

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Solution

The fourth proportional to 82,122.60, 113,329.71 and 51,921.54 is: 71,652.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,122.60 : 113,329.71 = 51,921.54 : x
  2. Step 2: Convert to fraction form
    82,122.60/113,329.71 = 51,921.54/x
  3. Step 3: Cross multiply
    82,122.60x = 113,329.71 × 51,921.54
  4. Step 4: Simplify right side
    82,122.60x = 5,884,253,070.95
  5. Step 5: Solve for x
    x = 5,884,253,070.95/82,122.60
  6. Step 6: Final answer
    x = 71,652.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.