Home / 39,680.78-59,379.05-34,362.38

Finding the Fourth Proportional to 39,680.78, 59,379.05 and 34,362.38

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Solution

The fourth proportional to 39,680.78, 59,379.05 and 34,362.38 is: 51,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,680.78 : 59,379.05 = 34,362.38 : x
  2. Step 2: Convert to fraction form
    39,680.78/59,379.05 = 34,362.38/x
  3. Step 3: Cross multiply
    39,680.78x = 59,379.05 × 34,362.38
  4. Step 4: Simplify right side
    39,680.78x = 2,040,405,011.43
  5. Step 5: Solve for x
    x = 2,040,405,011.43/39,680.78
  6. Step 6: Final answer
    x = 51,420.49

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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.