Home / 45,045.27-67,515.11-18,374.61

Finding the Fourth Proportional to 45,045.27, 67,515.11 and 18,374.61

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Solution

The fourth proportional to 45,045.27, 67,515.11 and 18,374.61 is: 27,540.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,045.27 : 67,515.11 = 18,374.61 : x
  2. Step 2: Convert to fraction form
    45,045.27/67,515.11 = 18,374.61/x
  3. Step 3: Cross multiply
    45,045.27x = 67,515.11 × 18,374.61
  4. Step 4: Simplify right side
    45,045.27x = 1,240,563,815.36
  5. Step 5: Solve for x
    x = 1,240,563,815.36/45,045.27
  6. Step 6: Final answer
    x = 27,540.38

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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.