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Finding the Fourth Proportional to 64,226.39, 96,348.81 and 19,856.60

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Solution

The fourth proportional to 64,226.39, 96,348.81 and 19,856.60 is: 29,787.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,226.39 : 96,348.81 = 19,856.60 : x
  2. Step 2: Convert to fraction form
    64,226.39/96,348.81 = 19,856.60/x
  3. Step 3: Cross multiply
    64,226.39x = 96,348.81 × 19,856.60
  4. Step 4: Simplify right side
    64,226.39x = 1,913,159,780.65
  5. Step 5: Solve for x
    x = 1,913,159,780.65/64,226.39
  6. Step 6: Final answer
    x = 29,787.75

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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.