Home / 48,759.86-73,139.78-13,221.38

Finding the Fourth Proportional to 48,759.86, 73,139.78 and 13,221.38

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Solution

The fourth proportional to 48,759.86, 73,139.78 and 13,221.38 is: 19,832.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,759.86 : 73,139.78 = 13,221.38 : x
  2. Step 2: Convert to fraction form
    48,759.86/73,139.78 = 13,221.38/x
  3. Step 3: Cross multiply
    48,759.86x = 73,139.78 × 13,221.38
  4. Step 4: Simplify right side
    48,759.86x = 967,008,824.50
  5. Step 5: Solve for x
    x = 967,008,824.50/48,759.86
  6. Step 6: Final answer
    x = 19,832.07

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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.