Home / 69,648.39-96,120.74-39,439.04

Finding the Fourth Proportional to 69,648.39, 96,120.74 and 39,439.04

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Solution

The fourth proportional to 69,648.39, 96,120.74 and 39,439.04 is: 54,429.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,648.39 : 96,120.74 = 39,439.04 : x
  2. Step 2: Convert to fraction form
    69,648.39/96,120.74 = 39,439.04/x
  3. Step 3: Cross multiply
    69,648.39x = 96,120.74 × 39,439.04
  4. Step 4: Simplify right side
    69,648.39x = 3,790,909,327.68
  5. Step 5: Solve for x
    x = 3,790,909,327.68/69,648.39
  6. Step 6: Final answer
    x = 54,429.25

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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.