Home / 69,642.50-96,107.78-39,427.04

Finding the Fourth Proportional to 69,642.50, 96,107.78 and 39,427.04

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Solution

The fourth proportional to 69,642.50, 96,107.78 and 39,427.04 is: 54,409.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,642.50 : 96,107.78 = 39,427.04 : x
  2. Step 2: Convert to fraction form
    69,642.50/96,107.78 = 39,427.04/x
  3. Step 3: Cross multiply
    69,642.50x = 96,107.78 × 39,427.04
  4. Step 4: Simplify right side
    69,642.50x = 3,789,245,286.37
  5. Step 5: Solve for x
    x = 3,789,245,286.37/69,642.50
  6. Step 6: Final answer
    x = 54,409.95

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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.