Home / 66,489.26-91,758.69-38,196.77

Finding the Fourth Proportional to 66,489.26, 91,758.69 and 38,196.77

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Solution

The fourth proportional to 66,489.26, 91,758.69 and 38,196.77 is: 52,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,489.26 : 91,758.69 = 38,196.77 : x
  2. Step 2: Convert to fraction form
    66,489.26/91,758.69 = 38,196.77/x
  3. Step 3: Cross multiply
    66,489.26x = 91,758.69 × 38,196.77
  4. Step 4: Simplify right side
    66,489.26x = 3,504,885,118.64
  5. Step 5: Solve for x
    x = 3,504,885,118.64/66,489.26
  6. Step 6: Final answer
    x = 52,713.56

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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.