Home / 81,788.07-112,873.49-49,962.97

Finding the Fourth Proportional to 81,788.07, 112,873.49 and 49,962.97

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Solution

The fourth proportional to 81,788.07, 112,873.49 and 49,962.97 is: 68,952.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,788.07 : 112,873.49 = 49,962.97 : x
  2. Step 2: Convert to fraction form
    81,788.07/112,873.49 = 49,962.97/x
  3. Step 3: Cross multiply
    81,788.07x = 112,873.49 × 49,962.97
  4. Step 4: Simplify right side
    81,788.07x = 5,639,494,873.30
  5. Step 5: Solve for x
    x = 5,639,494,873.30/81,788.07
  6. Step 6: Final answer
    x = 68,952.53

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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.