Home / 92,545.20-138,817.80-30,215.70

Finding the Fourth Proportional to 92,545.20, 138,817.80 and 30,215.70

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Solution

The fourth proportional to 92,545.20, 138,817.80 and 30,215.70 is: 45,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,545.20 : 138,817.80 = 30,215.70 : x
  2. Step 2: Convert to fraction form
    92,545.20/138,817.80 = 30,215.70/x
  3. Step 3: Cross multiply
    92,545.20x = 138,817.80 × 30,215.70
  4. Step 4: Simplify right side
    92,545.20x = 4,194,476,999.46
  5. Step 5: Solve for x
    x = 4,194,476,999.46/92,545.20
  6. Step 6: Final answer
    x = 45,323.55

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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.