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Finding the Fourth Proportional to 66,161.88, 91,311.24 and 37,876.68

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Solution

The fourth proportional to 66,161.88, 91,311.24 and 37,876.68 is: 52,274.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,161.88 : 91,311.24 = 37,876.68 : x
  2. Step 2: Convert to fraction form
    66,161.88/91,311.24 = 37,876.68/x
  3. Step 3: Cross multiply
    66,161.88x = 91,311.24 × 37,876.68
  4. Step 4: Simplify right side
    66,161.88x = 3,458,566,617.88
  5. Step 5: Solve for x
    x = 3,458,566,617.88/66,161.88
  6. Step 6: Final answer
    x = 52,274.31

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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.