Home / 45,475.07-68,180.85-20,160.86

Finding the Fourth Proportional to 45,475.07, 68,180.85 and 20,160.86

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Solution

The fourth proportional to 45,475.07, 68,180.85 and 20,160.86 is: 30,227.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,475.07 : 68,180.85 = 20,160.86 : x
  2. Step 2: Convert to fraction form
    45,475.07/68,180.85 = 20,160.86/x
  3. Step 3: Cross multiply
    45,475.07x = 68,180.85 × 20,160.86
  4. Step 4: Simplify right side
    45,475.07x = 1,374,584,230.63
  5. Step 5: Solve for x
    x = 1,374,584,230.63/45,475.07
  6. Step 6: Final answer
    x = 30,227.21

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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.