Home / 69,631.52-96,081.36-39,817.76

Finding the Fourth Proportional to 69,631.52, 96,081.36 and 39,817.76

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Solution

The fourth proportional to 69,631.52, 96,081.36 and 39,817.76 is: 54,942.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,631.52 : 96,081.36 = 39,817.76 : x
  2. Step 2: Convert to fraction form
    69,631.52/96,081.36 = 39,817.76/x
  3. Step 3: Cross multiply
    69,631.52x = 96,081.36 × 39,817.76
  4. Step 4: Simplify right side
    69,631.52x = 3,825,744,532.95
  5. Step 5: Solve for x
    x = 3,825,744,532.95/69,631.52
  6. Step 6: Final answer
    x = 54,942.71

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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.