Home / 74,274.30-111,418.02-20,966.63

Finding the Fourth Proportional to 74,274.30, 111,418.02 and 20,966.63

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Solution

The fourth proportional to 74,274.30, 111,418.02 and 20,966.63 is: 31,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,274.30 : 111,418.02 = 20,966.63 : x
  2. Step 2: Convert to fraction form
    74,274.30/111,418.02 = 20,966.63/x
  3. Step 3: Cross multiply
    74,274.30x = 111,418.02 × 20,966.63
  4. Step 4: Simplify right side
    74,274.30x = 2,336,059,843.58
  5. Step 5: Solve for x
    x = 2,336,059,843.58/74,274.30
  6. Step 6: Final answer
    x = 31,451.79

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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.