Home / 69,668.38-96,139.25-39,453.06

Finding the Fourth Proportional to 69,668.38, 96,139.25 and 39,453.06

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Solution

The fourth proportional to 69,668.38, 96,139.25 and 39,453.06 is: 54,443.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,668.38 : 96,139.25 = 39,453.06 : x
  2. Step 2: Convert to fraction form
    69,668.38/96,139.25 = 39,453.06/x
  3. Step 3: Cross multiply
    69,668.38x = 96,139.25 × 39,453.06
  4. Step 4: Simplify right side
    69,668.38x = 3,792,987,549.29
  5. Step 5: Solve for x
    x = 3,792,987,549.29/69,668.38
  6. Step 6: Final answer
    x = 54,443.46

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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.