Home / 83,418.09-115,118.46-45,689.91

Finding the Fourth Proportional to 83,418.09, 115,118.46 and 45,689.91

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Solution

The fourth proportional to 83,418.09, 115,118.46 and 45,689.91 is: 63,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,418.09 : 115,118.46 = 45,689.91 : x
  2. Step 2: Convert to fraction form
    83,418.09/115,118.46 = 45,689.91/x
  3. Step 3: Cross multiply
    83,418.09x = 115,118.46 × 45,689.91
  4. Step 4: Simplify right side
    83,418.09x = 5,259,752,076.74
  5. Step 5: Solve for x
    x = 5,259,752,076.74/83,418.09
  6. Step 6: Final answer
    x = 63,052.90

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1.5x scale

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.