Home / 48,647.16-72,949.68-20,579.76

Finding the Fourth Proportional to 48,647.16, 72,949.68 and 20,579.76

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Solution

The fourth proportional to 48,647.16, 72,949.68 and 20,579.76 is: 30,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,647.16 : 72,949.68 = 20,579.76 : x
  2. Step 2: Convert to fraction form
    48,647.16/72,949.68 = 20,579.76/x
  3. Step 3: Cross multiply
    48,647.16x = 72,949.68 × 20,579.76
  4. Step 4: Simplify right side
    48,647.16x = 1,501,286,906.48
  5. Step 5: Solve for x
    x = 1,501,286,906.48/48,647.16
  6. Step 6: Final answer
    x = 30,860.73

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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.