Home / 83,634.69-115,416.73-45,394.57

Finding the Fourth Proportional to 83,634.69, 115,416.73 and 45,394.57

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Solution

The fourth proportional to 83,634.69, 115,416.73 and 45,394.57 is: 62,644.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,634.69 : 115,416.73 = 45,394.57 : x
  2. Step 2: Convert to fraction form
    83,634.69/115,416.73 = 45,394.57/x
  3. Step 3: Cross multiply
    83,634.69x = 115,416.73 × 45,394.57
  4. Step 4: Simplify right side
    83,634.69x = 5,239,292,829.16
  5. Step 5: Solve for x
    x = 5,239,292,829.16/83,634.69
  6. Step 6: Final answer
    x = 62,644.97

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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.