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Finding the Fourth Proportional to 44,160.88, 66,210 and 20,774.56

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Solution

The fourth proportional to 44,160.88, 66,210 and 20,774.56 is: 31,147.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,160.88 : 66,210 = 20,774.56 : x
  2. Step 2: Convert to fraction form
    44,160.88/66,210 = 20,774.56/x
  3. Step 3: Cross multiply
    44,160.88x = 66,210 × 20,774.56
  4. Step 4: Simplify right side
    44,160.88x = 1,375,483,617.60
  5. Step 5: Solve for x
    x = 1,375,483,617.60/44,160.88
  6. Step 6: Final answer
    x = 31,147.11

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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.