Home / 69,989.37-96,589.97-39,774.75

Finding the Fourth Proportional to 69,989.37, 96,589.97 and 39,774.75

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Solution

The fourth proportional to 69,989.37, 96,589.97 and 39,774.75 is: 54,891.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,989.37 : 96,589.97 = 39,774.75 : x
  2. Step 2: Convert to fraction form
    69,989.37/96,589.97 = 39,774.75/x
  3. Step 3: Cross multiply
    69,989.37x = 96,589.97 × 39,774.75
  4. Step 4: Simplify right side
    69,989.37x = 3,841,841,909.26
  5. Step 5: Solve for x
    x = 3,841,841,909.26/69,989.37
  6. Step 6: Final answer
    x = 54,891.79

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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.