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Finding the Fourth Proportional to 80,353.37, 110,899.92 and 51,294.29

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Solution

The fourth proportional to 80,353.37, 110,899.92 and 51,294.29 is: 70,793.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,353.37 : 110,899.92 = 51,294.29 : x
  2. Step 2: Convert to fraction form
    80,353.37/110,899.92 = 51,294.29/x
  3. Step 3: Cross multiply
    80,353.37x = 110,899.92 × 51,294.29
  4. Step 4: Simplify right side
    80,353.37x = 5,688,532,102.96
  5. Step 5: Solve for x
    x = 5,688,532,102.96/80,353.37
  6. Step 6: Final answer
    x = 70,793.95

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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.