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Finding the Fourth Proportional to 80,262.78, 120,402.13 and 29,675.06

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Solution

The fourth proportional to 80,262.78, 120,402.13 and 29,675.06 is: 44,515.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,262.78 : 120,402.13 = 29,675.06 : x
  2. Step 2: Convert to fraction form
    80,262.78/120,402.13 = 29,675.06/x
  3. Step 3: Cross multiply
    80,262.78x = 120,402.13 × 29,675.06
  4. Step 4: Simplify right side
    80,262.78x = 3,572,940,431.88
  5. Step 5: Solve for x
    x = 3,572,940,431.88/80,262.78
  6. Step 6: Final answer
    x = 44,515.53

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1.5x scale

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.