Home / 66,126.20-91,251.64-35,910.88

Finding the Fourth Proportional to 66,126.20, 91,251.64 and 35,910.88

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Solution

The fourth proportional to 66,126.20, 91,251.64 and 35,910.88 is: 49,555.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,126.20 : 91,251.64 = 35,910.88 : x
  2. Step 2: Convert to fraction form
    66,126.20/91,251.64 = 35,910.88/x
  3. Step 3: Cross multiply
    66,126.20x = 91,251.64 × 35,910.88
  4. Step 4: Simplify right side
    66,126.20x = 3,276,926,693.84
  5. Step 5: Solve for x
    x = 3,276,926,693.84/66,126.20
  6. Step 6: Final answer
    x = 49,555.65

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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.