Home / 49,861.12-74,772.24-18,679.36

Finding the Fourth Proportional to 49,861.12, 74,772.24 and 18,679.36

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Solution

The fourth proportional to 49,861.12, 74,772.24 and 18,679.36 is: 28,011.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,861.12 : 74,772.24 = 18,679.36 : x
  2. Step 2: Convert to fraction form
    49,861.12/74,772.24 = 18,679.36/x
  3. Step 3: Cross multiply
    49,861.12x = 74,772.24 × 18,679.36
  4. Step 4: Simplify right side
    49,861.12x = 1,396,697,588.97
  5. Step 5: Solve for x
    x = 1,396,697,588.97/49,861.12
  6. Step 6: Final answer
    x = 28,011.76

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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.