Home / 91,687.11-126,535.49-53,968.65

Finding the Fourth Proportional to 91,687.11, 126,535.49 and 53,968.65

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Solution

The fourth proportional to 91,687.11, 126,535.49 and 53,968.65 is: 74,481.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,687.11 : 126,535.49 = 53,968.65 : x
  2. Step 2: Convert to fraction form
    91,687.11/126,535.49 = 53,968.65/x
  3. Step 3: Cross multiply
    91,687.11x = 126,535.49 × 53,968.65
  4. Step 4: Simplify right side
    91,687.11x = 6,828,949,572.39
  5. Step 5: Solve for x
    x = 6,828,949,572.39/91,687.11
  6. Step 6: Final answer
    x = 74,481.02

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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.