Home / 69,396.14-104,078.65-31,920.23

Finding the Fourth Proportional to 69,396.14, 104,078.65 and 31,920.23

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Solution

The fourth proportional to 69,396.14, 104,078.65 and 31,920.23 is: 47,873.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,396.14 : 104,078.65 = 31,920.23 : x
  2. Step 2: Convert to fraction form
    69,396.14/104,078.65 = 31,920.23/x
  3. Step 3: Cross multiply
    69,396.14x = 104,078.65 × 31,920.23
  4. Step 4: Simplify right side
    69,396.14x = 3,322,214,011.12
  5. Step 5: Solve for x
    x = 3,322,214,011.12/69,396.14
  6. Step 6: Final answer
    x = 47,873.18

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1.5x scale

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.