Home / 54,930.32-82,395.46-19,861.78

Finding the Fourth Proportional to 54,930.32, 82,395.46 and 19,861.78

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Solution

The fourth proportional to 54,930.32, 82,395.46 and 19,861.78 is: 29,792.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,930.32 : 82,395.46 = 19,861.78 : x
  2. Step 2: Convert to fraction form
    54,930.32/82,395.46 = 19,861.78/x
  3. Step 3: Cross multiply
    54,930.32x = 82,395.46 × 19,861.78
  4. Step 4: Simplify right side
    54,930.32x = 1,636,520,499.52
  5. Step 5: Solve for x
    x = 1,636,520,499.52/54,930.32
  6. Step 6: Final answer
    x = 29,792.66

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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.