Home / 69,615.26-96,064.68-39,406.71

Finding the Fourth Proportional to 69,615.26, 96,064.68 and 39,406.71

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Solution

The fourth proportional to 69,615.26, 96,064.68 and 39,406.71 is: 54,378.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,615.26 : 96,064.68 = 39,406.71 : x
  2. Step 2: Convert to fraction form
    69,615.26/96,064.68 = 39,406.71/x
  3. Step 3: Cross multiply
    69,615.26x = 96,064.68 × 39,406.71
  4. Step 4: Simplify right side
    69,615.26x = 3,785,592,986.00
  5. Step 5: Solve for x
    x = 3,785,592,986.00/69,615.26
  6. Step 6: Final answer
    x = 54,378.79

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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.