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Finding the Fourth Proportional to 81,794.72, 112,888.14 and 45,986.96

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Solution

The fourth proportional to 81,794.72, 112,888.14 and 45,986.96 is: 63,468.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,794.72 : 112,888.14 = 45,986.96 : x
  2. Step 2: Convert to fraction form
    81,794.72/112,888.14 = 45,986.96/x
  3. Step 3: Cross multiply
    81,794.72x = 112,888.14 × 45,986.96
  4. Step 4: Simplify right side
    81,794.72x = 5,191,382,378.65
  5. Step 5: Solve for x
    x = 5,191,382,378.65/81,794.72
  6. Step 6: Final answer
    x = 63,468.43

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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.