Home / 83,486.54-115,223.24-51,665.69

Finding the Fourth Proportional to 83,486.54, 115,223.24 and 51,665.69

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Solution

The fourth proportional to 83,486.54, 115,223.24 and 51,665.69 is: 71,305.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,486.54 : 115,223.24 = 51,665.69 : x
  2. Step 2: Convert to fraction form
    83,486.54/115,223.24 = 51,665.69/x
  3. Step 3: Cross multiply
    83,486.54x = 115,223.24 × 51,665.69
  4. Step 4: Simplify right side
    83,486.54x = 5,953,088,198.64
  5. Step 5: Solve for x
    x = 5,953,088,198.64/83,486.54
  6. Step 6: Final answer
    x = 71,305.96

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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.