Home / 66,065.04-91,198.20-40,575.54

Finding the Fourth Proportional to 66,065.04, 91,198.20 and 40,575.54

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Solution

The fourth proportional to 66,065.04, 91,198.20 and 40,575.54 is: 56,011.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,065.04 : 91,198.20 = 40,575.54 : x
  2. Step 2: Convert to fraction form
    66,065.04/91,198.20 = 40,575.54/x
  3. Step 3: Cross multiply
    66,065.04x = 91,198.20 × 40,575.54
  4. Step 4: Simplify right side
    66,065.04x = 3,700,416,212.03
  5. Step 5: Solve for x
    x = 3,700,416,212.03/66,065.04
  6. Step 6: Final answer
    x = 56,011.72

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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.