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Finding the Fourth Proportional to 55,059.84, 82,537.92 and 19,981.44

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Solution

The fourth proportional to 55,059.84, 82,537.92 and 19,981.44 is: 29,953.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,059.84 : 82,537.92 = 19,981.44 : x
  2. Step 2: Convert to fraction form
    55,059.84/82,537.92 = 19,981.44/x
  3. Step 3: Cross multiply
    55,059.84x = 82,537.92 × 19,981.44
  4. Step 4: Simplify right side
    55,059.84x = 1,649,226,496.20
  5. Step 5: Solve for x
    x = 1,649,226,496.20/55,059.84
  6. Step 6: Final answer
    x = 29,953.35

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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.