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Finding the Fourth Proportional to 54,859.77, 82,286.91 and 19,322.85

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Solution

The fourth proportional to 54,859.77, 82,286.91 and 19,322.85 is: 28,983.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,859.77 : 82,286.91 = 19,322.85 : x
  2. Step 2: Convert to fraction form
    54,859.77/82,286.91 = 19,322.85/x
  3. Step 3: Cross multiply
    54,859.77x = 82,286.91 × 19,322.85
  4. Step 4: Simplify right side
    54,859.77x = 1,590,017,618.89
  5. Step 5: Solve for x
    x = 1,590,017,618.89/54,859.77
  6. Step 6: Final answer
    x = 28,983.31

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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.