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Finding the Fourth Proportional to 54,354.36, 74,974.50 and 39,269.19

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Solution

The fourth proportional to 54,354.36, 74,974.50 and 39,269.19 is: 54,166.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,354.36 : 74,974.50 = 39,269.19 : x
  2. Step 2: Convert to fraction form
    54,354.36/74,974.50 = 39,269.19/x
  3. Step 3: Cross multiply
    54,354.36x = 74,974.50 × 39,269.19
  4. Step 4: Simplify right side
    54,354.36x = 2,944,187,885.66
  5. Step 5: Solve for x
    x = 2,944,187,885.66/54,354.36
  6. Step 6: Final answer
    x = 54,166.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.