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Finding the Fourth Proportional to 54,006.10, 80,899.80 and 30,605.20

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Solution

The fourth proportional to 54,006.10, 80,899.80 and 30,605.20 is: 45,845.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,006.10 : 80,899.80 = 30,605.20 : x
  2. Step 2: Convert to fraction form
    54,006.10/80,899.80 = 30,605.20/x
  3. Step 3: Cross multiply
    54,006.10x = 80,899.80 × 30,605.20
  4. Step 4: Simplify right side
    54,006.10x = 2,475,954,558.96
  5. Step 5: Solve for x
    x = 2,475,954,558.96/54,006.10
  6. Step 6: Final answer
    x = 45,845.83

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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.