Home / 49,176.28-73,764.30-21,078.12

Finding the Fourth Proportional to 49,176.28, 73,764.30 and 21,078.12

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Solution

The fourth proportional to 49,176.28, 73,764.30 and 21,078.12 is: 31,617.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,176.28 : 73,764.30 = 21,078.12 : x
  2. Step 2: Convert to fraction form
    49,176.28/73,764.30 = 21,078.12/x
  3. Step 3: Cross multiply
    49,176.28x = 73,764.30 × 21,078.12
  4. Step 4: Simplify right side
    49,176.28x = 1,554,812,767.12
  5. Step 5: Solve for x
    x = 1,554,812,767.12/49,176.28
  6. Step 6: Final answer
    x = 31,617.13

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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.