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Finding the Fourth Proportional to 80,534.88, 120,802.32 and 27,944.40

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Solution

The fourth proportional to 80,534.88, 120,802.32 and 27,944.40 is: 41,916.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,534.88 : 120,802.32 = 27,944.40 : x
  2. Step 2: Convert to fraction form
    80,534.88/120,802.32 = 27,944.40/x
  3. Step 3: Cross multiply
    80,534.88x = 120,802.32 × 27,944.40
  4. Step 4: Simplify right side
    80,534.88x = 3,375,748,351.01
  5. Step 5: Solve for x
    x = 3,375,748,351.01/80,534.88
  6. Step 6: Final answer
    x = 41,916.60

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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.