Home / 48,608.29-72,903.12-20,519.11

Finding the Fourth Proportional to 48,608.29, 72,903.12 and 20,519.11

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Solution

The fourth proportional to 48,608.29, 72,903.12 and 20,519.11 is: 30,774.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,608.29 : 72,903.12 = 20,519.11 : x
  2. Step 2: Convert to fraction form
    48,608.29/72,903.12 = 20,519.11/x
  3. Step 3: Cross multiply
    48,608.29x = 72,903.12 × 20,519.11
  4. Step 4: Simplify right side
    48,608.29x = 1,495,907,138.62
  5. Step 5: Solve for x
    x = 1,495,907,138.62/48,608.29
  6. Step 6: Final answer
    x = 30,774.73

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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.