Home / 45,339.40-67,942.14-21,937.96

Finding the Fourth Proportional to 45,339.40, 67,942.14 and 21,937.96

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Solution

The fourth proportional to 45,339.40, 67,942.14 and 21,937.96 is: 32,874.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,339.40 : 67,942.14 = 21,937.96 : x
  2. Step 2: Convert to fraction form
    45,339.40/67,942.14 = 21,937.96/x
  3. Step 3: Cross multiply
    45,339.40x = 67,942.14 × 21,937.96
  4. Step 4: Simplify right side
    45,339.40x = 1,490,511,949.63
  5. Step 5: Solve for x
    x = 1,490,511,949.63/45,339.40
  6. Step 6: Final answer
    x = 32,874.54

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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.