Home / 82,116.31-113,338.65-53,385.97

Finding the Fourth Proportional to 82,116.31, 113,338.65 and 53,385.97

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Solution

The fourth proportional to 82,116.31, 113,338.65 and 53,385.97 is: 73,684.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,116.31 : 113,338.65 = 53,385.97 : x
  2. Step 2: Convert to fraction form
    82,116.31/113,338.65 = 53,385.97/x
  3. Step 3: Cross multiply
    82,116.31x = 113,338.65 × 53,385.97
  4. Step 4: Simplify right side
    82,116.31x = 6,050,693,768.74
  5. Step 5: Solve for x
    x = 6,050,693,768.74/82,116.31
  6. Step 6: Final answer
    x = 73,684.43

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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.