Home / 83,460.33-115,112.43-57,966.73

Finding the Fourth Proportional to 83,460.33, 115,112.43 and 57,966.73

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Solution

The fourth proportional to 83,460.33, 115,112.43 and 57,966.73 is: 79,950.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,460.33 : 115,112.43 = 57,966.73 : x
  2. Step 2: Convert to fraction form
    83,460.33/115,112.43 = 57,966.73/x
  3. Step 3: Cross multiply
    83,460.33x = 115,112.43 × 57,966.73
  4. Step 4: Simplify right side
    83,460.33x = 6,672,691,149.45
  5. Step 5: Solve for x
    x = 6,672,691,149.45/83,460.33
  6. Step 6: Final answer
    x = 79,950.45

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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.