Home / 66,771.96-91,654.32-59,049.12

Finding the Fourth Proportional to 66,771.96, 91,654.32 and 59,049.12

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Solution

The fourth proportional to 66,771.96, 91,654.32 and 59,049.12 is: 81,053.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,771.96 : 91,654.32 = 59,049.12 : x
  2. Step 2: Convert to fraction form
    66,771.96/91,654.32 = 59,049.12/x
  3. Step 3: Cross multiply
    66,771.96x = 91,654.32 × 59,049.12
  4. Step 4: Simplify right side
    66,771.96x = 5,412,106,940.20
  5. Step 5: Solve for x
    x = 5,412,106,940.20/66,771.96
  6. Step 6: Final answer
    x = 81,053.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.