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Finding the Fourth Proportional to 67,994.70, 101,888.11 and 28,530.28

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Solution

The fourth proportional to 67,994.70, 101,888.11 and 28,530.28 is: 42,751.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,994.70 : 101,888.11 = 28,530.28 : x
  2. Step 2: Convert to fraction form
    67,994.70/101,888.11 = 28,530.28/x
  3. Step 3: Cross multiply
    67,994.70x = 101,888.11 × 28,530.28
  4. Step 4: Simplify right side
    67,994.70x = 2,906,896,306.97
  5. Step 5: Solve for x
    x = 2,906,896,306.97/67,994.70
  6. Step 6: Final answer
    x = 42,751.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.