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Finding the Fourth Proportional to 68,648.18, 102,974.07 and 21,901.05

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Solution

The fourth proportional to 68,648.18, 102,974.07 and 21,901.05 is: 32,852.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,648.18 : 102,974.07 = 21,901.05 : x
  2. Step 2: Convert to fraction form
    68,648.18/102,974.07 = 21,901.05/x
  3. Step 3: Cross multiply
    68,648.18x = 102,974.07 × 21,901.05
  4. Step 4: Simplify right side
    68,648.18x = 2,255,240,255.77
  5. Step 5: Solve for x
    x = 2,255,240,255.77/68,648.18
  6. Step 6: Final answer
    x = 32,852.15

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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.