Home / 68,856.14-103,285.34-21,472.50

Finding the Fourth Proportional to 68,856.14, 103,285.34 and 21,472.50

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Solution

The fourth proportional to 68,856.14, 103,285.34 and 21,472.50 is: 32,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,856.14 : 103,285.34 = 21,472.50 : x
  2. Step 2: Convert to fraction form
    68,856.14/103,285.34 = 21,472.50/x
  3. Step 3: Cross multiply
    68,856.14x = 103,285.34 × 21,472.50
  4. Step 4: Simplify right side
    68,856.14x = 2,217,794,463.15
  5. Step 5: Solve for x
    x = 2,217,794,463.15/68,856.14
  6. Step 6: Final answer
    x = 32,209.10

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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.