Home / 83,634.57-115,416.56-45,394.43

Finding the Fourth Proportional to 83,634.57, 115,416.56 and 45,394.43

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Solution

The fourth proportional to 83,634.57, 115,416.56 and 45,394.43 is: 62,644.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,634.57 : 115,416.56 = 45,394.43 : x
  2. Step 2: Convert to fraction form
    83,634.57/115,416.56 = 45,394.43/x
  3. Step 3: Cross multiply
    83,634.57x = 115,416.56 × 45,394.43
  4. Step 4: Simplify right side
    83,634.57x = 5,239,268,953.76
  5. Step 5: Solve for x
    x = 5,239,268,953.76/83,634.57
  6. Step 6: Final answer
    x = 62,644.78

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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.