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Finding the Fourth Proportional to 80,799, 121,203.36 and 25,395

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Solution

The fourth proportional to 80,799, 121,203.36 and 25,395 is: 38,094.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,799 : 121,203.36 = 25,395 : x
  2. Step 2: Convert to fraction form
    80,799/121,203.36 = 25,395/x
  3. Step 3: Cross multiply
    80,799x = 121,203.36 × 25,395
  4. Step 4: Simplify right side
    80,799x = 3,077,959,327.20
  5. Step 5: Solve for x
    x = 3,077,959,327.20/80,799
  6. Step 6: Final answer
    x = 38,094.03

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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.