Home / 45,877.68-68,809.16-12,589.98

Finding the Fourth Proportional to 45,877.68, 68,809.16 and 12,589.98

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Solution

The fourth proportional to 45,877.68, 68,809.16 and 12,589.98 is: 18,882.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,877.68 : 68,809.16 = 12,589.98 : x
  2. Step 2: Convert to fraction form
    45,877.68/68,809.16 = 12,589.98/x
  3. Step 3: Cross multiply
    45,877.68x = 68,809.16 × 12,589.98
  4. Step 4: Simplify right side
    45,877.68x = 866,305,948.22
  5. Step 5: Solve for x
    x = 866,305,948.22/45,877.68
  6. Step 6: Final answer
    x = 18,882.95

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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.