Home / 48,620.49-72,959.43-20,538.72

Finding the Fourth Proportional to 48,620.49, 72,959.43 and 20,538.72

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Solution

The fourth proportional to 48,620.49, 72,959.43 and 20,538.72 is: 30,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,620.49 : 72,959.43 = 20,538.72 : x
  2. Step 2: Convert to fraction form
    48,620.49/72,959.43 = 20,538.72/x
  3. Step 3: Cross multiply
    48,620.49x = 72,959.43 × 20,538.72
  4. Step 4: Simplify right side
    48,620.49x = 1,498,493,304.13
  5. Step 5: Solve for x
    x = 1,498,493,304.13/48,620.49
  6. Step 6: Final answer
    x = 30,820.20

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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.