Home / 66,808.37-92,190.82-38,121.31

Finding the Fourth Proportional to 66,808.37, 92,190.82 and 38,121.31

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Solution

The fourth proportional to 66,808.37, 92,190.82 and 38,121.31 is: 52,604.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,808.37 : 92,190.82 = 38,121.31 : x
  2. Step 2: Convert to fraction form
    66,808.37/92,190.82 = 38,121.31/x
  3. Step 3: Cross multiply
    66,808.37x = 92,190.82 × 38,121.31
  4. Step 4: Simplify right side
    66,808.37x = 3,514,434,714.11
  5. Step 5: Solve for x
    x = 3,514,434,714.11/66,808.37
  6. Step 6: Final answer
    x = 52,604.71

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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.