Home / 48,645.16-72,936.96-20,550.76

Finding the Fourth Proportional to 48,645.16, 72,936.96 and 20,550.76

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Solution

The fourth proportional to 48,645.16, 72,936.96 and 20,550.76 is: 30,813.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,645.16 : 72,936.96 = 20,550.76 : x
  2. Step 2: Convert to fraction form
    48,645.16/72,936.96 = 20,550.76/x
  3. Step 3: Cross multiply
    48,645.16x = 72,936.96 × 20,550.76
  4. Step 4: Simplify right side
    48,645.16x = 1,498,909,960.09
  5. Step 5: Solve for x
    x = 1,498,909,960.09/48,645.16
  6. Step 6: Final answer
    x = 30,813.14

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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.