Home / 70,943.91-97,906.86-39,112.65

Finding the Fourth Proportional to 70,943.91, 97,906.86 and 39,112.65

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Solution

The fourth proportional to 70,943.91, 97,906.86 and 39,112.65 is: 53,977.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,943.91 : 97,906.86 = 39,112.65 : x
  2. Step 2: Convert to fraction form
    70,943.91/97,906.86 = 39,112.65/x
  3. Step 3: Cross multiply
    70,943.91x = 97,906.86 × 39,112.65
  4. Step 4: Simplify right side
    70,943.91x = 3,829,396,747.78
  5. Step 5: Solve for x
    x = 3,829,396,747.78/70,943.91
  6. Step 6: Final answer
    x = 53,977.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.