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Finding the Fourth Proportional to 45,555.80, 68,269.70 and 36,211.80

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Solution

The fourth proportional to 45,555.80, 68,269.70 and 36,211.80 is: 54,266.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,555.80 : 68,269.70 = 36,211.80 : x
  2. Step 2: Convert to fraction form
    45,555.80/68,269.70 = 36,211.80/x
  3. Step 3: Cross multiply
    45,555.80x = 68,269.70 × 36,211.80
  4. Step 4: Simplify right side
    45,555.80x = 2,472,168,722.46
  5. Step 5: Solve for x
    x = 2,472,168,722.46/45,555.80
  6. Step 6: Final answer
    x = 54,266.83

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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.