Home / 48,083.20-72,124.79-20,002.72

Finding the Fourth Proportional to 48,083.20, 72,124.79 and 20,002.72

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Solution

The fourth proportional to 48,083.20, 72,124.79 and 20,002.72 is: 30,004.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,083.20 : 72,124.79 = 20,002.72 : x
  2. Step 2: Convert to fraction form
    48,083.20/72,124.79 = 20,002.72/x
  3. Step 3: Cross multiply
    48,083.20x = 72,124.79 × 20,002.72
  4. Step 4: Simplify right side
    48,083.20x = 1,442,691,979.43
  5. Step 5: Solve for x
    x = 1,442,691,979.43/48,083.20
  6. Step 6: Final answer
    x = 30,004.08

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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.