Home / 74,918.72-112,377.67-30,545.30

Finding the Fourth Proportional to 74,918.72, 112,377.67 and 30,545.30

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Solution

The fourth proportional to 74,918.72, 112,377.67 and 30,545.30 is: 45,817.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,918.72 : 112,377.67 = 30,545.30 : x
  2. Step 2: Convert to fraction form
    74,918.72/112,377.67 = 30,545.30/x
  3. Step 3: Cross multiply
    74,918.72x = 112,377.67 × 30,545.30
  4. Step 4: Simplify right side
    74,918.72x = 3,432,608,928.84
  5. Step 5: Solve for x
    x = 3,432,608,928.84/74,918.72
  6. Step 6: Final answer
    x = 45,817.78

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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.