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Finding the Fourth Proportional to 49,108.98, 67,770.86 and 27,888.69

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Solution

The fourth proportional to 49,108.98, 67,770.86 and 27,888.69 is: 38,486.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,108.98 : 67,770.86 = 27,888.69 : x
  2. Step 2: Convert to fraction form
    49,108.98/67,770.86 = 27,888.69/x
  3. Step 3: Cross multiply
    49,108.98x = 67,770.86 × 27,888.69
  4. Step 4: Simplify right side
    49,108.98x = 1,890,040,366.13
  5. Step 5: Solve for x
    x = 1,890,040,366.13/49,108.98
  6. Step 6: Final answer
    x = 38,486.65

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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.