Home / 80,800.43-121,200.63-25,396.43

Finding the Fourth Proportional to 80,800.43, 121,200.63 and 25,396.43

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Solution

The fourth proportional to 80,800.43, 121,200.63 and 25,396.43 is: 38,094.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,800.43 : 121,200.63 = 25,396.43 : x
  2. Step 2: Convert to fraction form
    80,800.43/121,200.63 = 25,396.43/x
  3. Step 3: Cross multiply
    80,800.43x = 121,200.63 × 25,396.43
  4. Step 4: Simplify right side
    80,800.43x = 3,078,062,709.75
  5. Step 5: Solve for x
    x = 3,078,062,709.75/80,800.43
  6. Step 6: Final answer
    x = 38,094.64

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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.