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Finding the Fourth Proportional to 54,943.82, 82,449.57 and 21,658.22

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Solution

The fourth proportional to 54,943.82, 82,449.57 and 21,658.22 is: 32,500.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,943.82 : 82,449.57 = 21,658.22 : x
  2. Step 2: Convert to fraction form
    54,943.82/82,449.57 = 21,658.22/x
  3. Step 3: Cross multiply
    54,943.82x = 82,449.57 × 21,658.22
  4. Step 4: Simplify right side
    54,943.82x = 1,785,710,925.97
  5. Step 5: Solve for x
    x = 1,785,710,925.97/54,943.82
  6. Step 6: Final answer
    x = 32,500.67

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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.