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Finding the Fourth Proportional to 73,665.60, 110,478.18 and 20,344.83

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Solution

The fourth proportional to 73,665.60, 110,478.18 and 20,344.83 is: 30,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,665.60 : 110,478.18 = 20,344.83 : x
  2. Step 2: Convert to fraction form
    73,665.60/110,478.18 = 20,344.83/x
  3. Step 3: Cross multiply
    73,665.60x = 110,478.18 × 20,344.83
  4. Step 4: Simplify right side
    73,665.60x = 2,247,659,790.81
  5. Step 5: Solve for x
    x = 2,247,659,790.81/73,665.60
  6. Step 6: Final answer
    x = 30,511.66

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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.