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Finding the Fourth Proportional to 85,042.88, 117,357.36 and 49,234.40

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Solution

The fourth proportional to 85,042.88, 117,357.36 and 49,234.40 is: 67,942.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,042.88 : 117,357.36 = 49,234.40 : x
  2. Step 2: Convert to fraction form
    85,042.88/117,357.36 = 49,234.40/x
  3. Step 3: Cross multiply
    85,042.88x = 117,357.36 × 49,234.40
  4. Step 4: Simplify right side
    85,042.88x = 5,778,019,205.18
  5. Step 5: Solve for x
    x = 5,778,019,205.18/85,042.88
  6. Step 6: Final answer
    x = 67,942.42

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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.