Home / 83,486.16-115,215.62-49,514.76

Finding the Fourth Proportional to 83,486.16, 115,215.62 and 49,514.76

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Solution

The fourth proportional to 83,486.16, 115,215.62 and 49,514.76 is: 68,333.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,486.16 : 115,215.62 = 49,514.76 : x
  2. Step 2: Convert to fraction form
    83,486.16/115,215.62 = 49,514.76/x
  3. Step 3: Cross multiply
    83,486.16x = 115,215.62 × 49,514.76
  4. Step 4: Simplify right side
    83,486.16x = 5,704,873,524.98
  5. Step 5: Solve for x
    x = 5,704,873,524.98/83,486.16
  6. Step 6: Final answer
    x = 68,333.16

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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.