Home / 49,990.48-74,983.83-12,550.84

Finding the Fourth Proportional to 49,990.48, 74,983.83 and 12,550.84

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Solution

The fourth proportional to 49,990.48, 74,983.83 and 12,550.84 is: 18,825.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,990.48 : 74,983.83 = 12,550.84 : x
  2. Step 2: Convert to fraction form
    49,990.48/74,983.83 = 12,550.84/x
  3. Step 3: Cross multiply
    49,990.48x = 74,983.83 × 12,550.84
  4. Step 4: Simplify right side
    49,990.48x = 941,110,052.92
  5. Step 5: Solve for x
    x = 941,110,052.92/49,990.48
  6. Step 6: Final answer
    x = 18,825.79

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1.5x scale

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.