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Finding the Fourth Proportional to 64,374.60, 96,432.24 and 40,917

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Solution

The fourth proportional to 64,374.60, 96,432.24 and 40,917 is: 61,293.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,374.60 : 96,432.24 = 40,917 : x
  2. Step 2: Convert to fraction form
    64,374.60/96,432.24 = 40,917/x
  3. Step 3: Cross multiply
    64,374.60x = 96,432.24 × 40,917
  4. Step 4: Simplify right side
    64,374.60x = 3,945,717,964.08
  5. Step 5: Solve for x
    x = 3,945,717,964.08/64,374.60
  6. Step 6: Final answer
    x = 61,293.09

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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.