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Finding the Fourth Proportional to 75,017.70, 112,491.90 and 27,620.88

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Solution

The fourth proportional to 75,017.70, 112,491.90 and 27,620.88 is: 41,418.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,017.70 : 112,491.90 = 27,620.88 : x
  2. Step 2: Convert to fraction form
    75,017.70/112,491.90 = 27,620.88/x
  3. Step 3: Cross multiply
    75,017.70x = 112,491.90 × 27,620.88
  4. Step 4: Simplify right side
    75,017.70x = 3,107,125,270.87
  5. Step 5: Solve for x
    x = 3,107,125,270.87/75,017.70
  6. Step 6: Final answer
    x = 41,418.56

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1.5x scale

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.