Home / 45,083.79-67,631.83-18,782.38

Finding the Fourth Proportional to 45,083.79, 67,631.83 and 18,782.38

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Solution

The fourth proportional to 45,083.79, 67,631.83 and 18,782.38 is: 28,176.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,083.79 : 67,631.83 = 18,782.38 : x
  2. Step 2: Convert to fraction form
    45,083.79/67,631.83 = 18,782.38/x
  3. Step 3: Cross multiply
    45,083.79x = 67,631.83 × 18,782.38
  4. Step 4: Simplify right side
    45,083.79x = 1,270,286,299.08
  5. Step 5: Solve for x
    x = 1,270,286,299.08/45,083.79
  6. Step 6: Final answer
    x = 28,176.12

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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.