Home / 49,958.28-74,990.75-21,509.30

Finding the Fourth Proportional to 49,958.28, 74,990.75 and 21,509.30

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Solution

The fourth proportional to 49,958.28, 74,990.75 and 21,509.30 is: 32,286.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,958.28 : 74,990.75 = 21,509.30 : x
  2. Step 2: Convert to fraction form
    49,958.28/74,990.75 = 21,509.30/x
  3. Step 3: Cross multiply
    49,958.28x = 74,990.75 × 21,509.30
  4. Step 4: Simplify right side
    49,958.28x = 1,612,998,056.47
  5. Step 5: Solve for x
    x = 1,612,998,056.47/49,958.28
  6. Step 6: Final answer
    x = 32,286.90

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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.