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Finding the Fourth Proportional to 74,111.70, 111,171.12 and 24,191.70

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Solution

The fourth proportional to 74,111.70, 111,171.12 and 24,191.70 is: 36,288.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,111.70 : 111,171.12 = 24,191.70 : x
  2. Step 2: Convert to fraction form
    74,111.70/111,171.12 = 24,191.70/x
  3. Step 3: Cross multiply
    74,111.70x = 111,171.12 × 24,191.70
  4. Step 4: Simplify right side
    74,111.70x = 2,689,418,383.70
  5. Step 5: Solve for x
    x = 2,689,418,383.70/74,111.70
  6. Step 6: Final answer
    x = 36,288.72

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