Home / 83,873.12-115,647.94-66,864.07

Finding the Fourth Proportional to 83,873.12, 115,647.94 and 66,864.07

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Solution

The fourth proportional to 83,873.12, 115,647.94 and 66,864.07 is: 92,195.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,873.12 : 115,647.94 = 66,864.07 : x
  2. Step 2: Convert to fraction form
    83,873.12/115,647.94 = 66,864.07/x
  3. Step 3: Cross multiply
    83,873.12x = 115,647.94 × 66,864.07
  4. Step 4: Simplify right side
    83,873.12x = 7,732,691,955.52
  5. Step 5: Solve for x
    x = 7,732,691,955.52/83,873.12
  6. Step 6: Final answer
    x = 92,195.12

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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.