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Finding the Fourth Proportional to 85,674.72, 118,231.10 and 47,948.97

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Solution

The fourth proportional to 85,674.72, 118,231.10 and 47,948.97 is: 66,169.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,674.72 : 118,231.10 = 47,948.97 : x
  2. Step 2: Convert to fraction form
    85,674.72/118,231.10 = 47,948.97/x
  3. Step 3: Cross multiply
    85,674.72x = 118,231.10 × 47,948.97
  4. Step 4: Simplify right side
    85,674.72x = 5,669,059,227.22
  5. Step 5: Solve for x
    x = 5,669,059,227.22/85,674.72
  6. Step 6: Final answer
    x = 66,169.57

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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.