Home / 66,147.41-99,234.78-21,776.82

Finding the Fourth Proportional to 66,147.41, 99,234.78 and 21,776.82

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Solution

The fourth proportional to 66,147.41, 99,234.78 and 21,776.82 is: 32,669.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,147.41 : 99,234.78 = 21,776.82 : x
  2. Step 2: Convert to fraction form
    66,147.41/99,234.78 = 21,776.82/x
  3. Step 3: Cross multiply
    66,147.41x = 99,234.78 × 21,776.82
  4. Step 4: Simplify right side
    66,147.41x = 2,161,017,832.92
  5. Step 5: Solve for x
    x = 2,161,017,832.92/66,147.41
  6. Step 6: Final answer
    x = 32,669.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.