Home / 69,721.62-96,214.61-37,890.65

Finding the Fourth Proportional to 69,721.62, 96,214.61 and 37,890.65

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Solution

The fourth proportional to 69,721.62, 96,214.61 and 37,890.65 is: 52,288.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,721.62 : 96,214.61 = 37,890.65 : x
  2. Step 2: Convert to fraction form
    69,721.62/96,214.61 = 37,890.65/x
  3. Step 3: Cross multiply
    69,721.62x = 96,214.61 × 37,890.65
  4. Step 4: Simplify right side
    69,721.62x = 3,645,633,441.87
  5. Step 5: Solve for x
    x = 3,645,633,441.87/69,721.62
  6. Step 6: Final answer
    x = 52,288.42

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1.5x scale

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.