Home / 66,440.95-99,609.10-33,143.87

Finding the Fourth Proportional to 66,440.95, 99,609.10 and 33,143.87

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Solution

The fourth proportional to 66,440.95, 99,609.10 and 33,143.87 is: 49,689.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,440.95 : 99,609.10 = 33,143.87 : x
  2. Step 2: Convert to fraction form
    66,440.95/99,609.10 = 33,143.87/x
  3. Step 3: Cross multiply
    66,440.95x = 99,609.10 × 33,143.87
  4. Step 4: Simplify right side
    66,440.95x = 3,301,431,227.38
  5. Step 5: Solve for x
    x = 3,301,431,227.38/66,440.95
  6. Step 6: Final answer
    x = 49,689.71

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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.