Home / 45,118.32-67,684.05-13,956

Finding the Fourth Proportional to 45,118.32, 67,684.05 and 13,956

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Solution

The fourth proportional to 45,118.32, 67,684.05 and 13,956 is: 20,936.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,118.32 : 67,684.05 = 13,956 : x
  2. Step 2: Convert to fraction form
    45,118.32/67,684.05 = 13,956/x
  3. Step 3: Cross multiply
    45,118.32x = 67,684.05 × 13,956
  4. Step 4: Simplify right side
    45,118.32x = 944,598,601.80
  5. Step 5: Solve for x
    x = 944,598,601.80/45,118.32
  6. Step 6: Final answer
    x = 20,936.03

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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.