Home / 66,102.12-91,221.03-35,887.47

Finding the Fourth Proportional to 66,102.12, 91,221.03 and 35,887.47

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Solution

The fourth proportional to 66,102.12, 91,221.03 and 35,887.47 is: 49,524.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,102.12 : 91,221.03 = 35,887.47 : x
  2. Step 2: Convert to fraction form
    66,102.12/91,221.03 = 35,887.47/x
  3. Step 3: Cross multiply
    66,102.12x = 91,221.03 × 35,887.47
  4. Step 4: Simplify right side
    66,102.12x = 3,273,691,977.49
  5. Step 5: Solve for x
    x = 3,273,691,977.49/66,102.12
  6. Step 6: Final answer
    x = 49,524.77

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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.