Home / 66,451.24-91,704.90-39,598.12

Finding the Fourth Proportional to 66,451.24, 91,704.90 and 39,598.12

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Solution

The fourth proportional to 66,451.24, 91,704.90 and 39,598.12 is: 54,646.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,451.24 : 91,704.90 = 39,598.12 : x
  2. Step 2: Convert to fraction form
    66,451.24/91,704.90 = 39,598.12/x
  3. Step 3: Cross multiply
    66,451.24x = 91,704.90 × 39,598.12
  4. Step 4: Simplify right side
    66,451.24x = 3,631,341,634.79
  5. Step 5: Solve for x
    x = 3,631,341,634.79/66,451.24
  6. Step 6: Final answer
    x = 54,646.71

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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.