Home / 83,414.81-115,112.85-45,689.06

Finding the Fourth Proportional to 83,414.81, 115,112.85 and 45,689.06

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Solution

The fourth proportional to 83,414.81, 115,112.85 and 45,689.06 is: 63,051.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,414.81 : 115,112.85 = 45,689.06 : x
  2. Step 2: Convert to fraction form
    83,414.81/115,112.85 = 45,689.06/x
  3. Step 3: Cross multiply
    83,414.81x = 115,112.85 × 45,689.06
  4. Step 4: Simplify right side
    83,414.81x = 5,259,398,026.87
  5. Step 5: Solve for x
    x = 5,259,398,026.87/83,414.81
  6. Step 6: Final answer
    x = 63,051.13

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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.