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Finding the Fourth Proportional to 80,082.20, 110,495.11 and 47,810.54

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Solution

The fourth proportional to 80,082.20, 110,495.11 and 47,810.54 is: 65,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,082.20 : 110,495.11 = 47,810.54 : x
  2. Step 2: Convert to fraction form
    80,082.20/110,495.11 = 47,810.54/x
  3. Step 3: Cross multiply
    80,082.20x = 110,495.11 × 47,810.54
  4. Step 4: Simplify right side
    80,082.20x = 5,282,830,637.41
  5. Step 5: Solve for x
    x = 5,282,830,637.41/80,082.20
  6. Step 6: Final answer
    x = 65,967.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.