Home / 54,153.68-81,237.24-19,086.32

Finding the Fourth Proportional to 54,153.68, 81,237.24 and 19,086.32

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Solution

The fourth proportional to 54,153.68, 81,237.24 and 19,086.32 is: 28,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,153.68 : 81,237.24 = 19,086.32 : x
  2. Step 2: Convert to fraction form
    54,153.68/81,237.24 = 19,086.32/x
  3. Step 3: Cross multiply
    54,153.68x = 81,237.24 × 19,086.32
  4. Step 4: Simplify right side
    54,153.68x = 1,550,519,958.56
  5. Step 5: Solve for x
    x = 1,550,519,958.56/54,153.68
  6. Step 6: Final answer
    x = 28,631.85

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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.