Home / 69,429.81-95,815.00-39,219.59

Finding the Fourth Proportional to 69,429.81, 95,815.00 and 39,219.59

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Solution

The fourth proportional to 69,429.81, 95,815.00 and 39,219.59 is: 54,124.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,429.81 : 95,815.00 = 39,219.59 : x
  2. Step 2: Convert to fraction form
    69,429.81/95,815.00 = 39,219.59/x
  3. Step 3: Cross multiply
    69,429.81x = 95,815.00 × 39,219.59
  4. Step 4: Simplify right side
    69,429.81x = 3,757,825,304.41
  5. Step 5: Solve for x
    x = 3,757,825,304.41/69,429.81
  6. Step 6: Final answer
    x = 54,124.09

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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.