Home / 83,781.27-115,581.60-47,963.07

Finding the Fourth Proportional to 83,781.27, 115,581.60 and 47,963.07

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Solution

The fourth proportional to 83,781.27, 115,581.60 and 47,963.07 is: 66,168.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,781.27 : 115,581.60 = 47,963.07 : x
  2. Step 2: Convert to fraction form
    83,781.27/115,581.60 = 47,963.07/x
  3. Step 3: Cross multiply
    83,781.27x = 115,581.60 × 47,963.07
  4. Step 4: Simplify right side
    83,781.27x = 5,543,648,371.51
  5. Step 5: Solve for x
    x = 5,543,648,371.51/83,781.27
  6. Step 6: Final answer
    x = 66,168.11

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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.