Home / 80,807.20-121,199.28-25,396

Finding the Fourth Proportional to 80,807.20, 121,199.28 and 25,396

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Solution

The fourth proportional to 80,807.20, 121,199.28 and 25,396 is: 38,090.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,807.20 : 121,199.28 = 25,396 : x
  2. Step 2: Convert to fraction form
    80,807.20/121,199.28 = 25,396/x
  3. Step 3: Cross multiply
    80,807.20x = 121,199.28 × 25,396
  4. Step 4: Simplify right side
    80,807.20x = 3,077,976,914.88
  5. Step 5: Solve for x
    x = 3,077,976,914.88/80,807.20
  6. Step 6: Final answer
    x = 38,090.38

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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.