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Finding the Fourth Proportional to 64,334.89, 96,497.70 and 19,960.50

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Solution

The fourth proportional to 64,334.89, 96,497.70 and 19,960.50 is: 29,939.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,334.89 : 96,497.70 = 19,960.50 : x
  2. Step 2: Convert to fraction form
    64,334.89/96,497.70 = 19,960.50/x
  3. Step 3: Cross multiply
    64,334.89x = 96,497.70 × 19,960.50
  4. Step 4: Simplify right side
    64,334.89x = 1,926,142,340.85
  5. Step 5: Solve for x
    x = 1,926,142,340.85/64,334.89
  6. Step 6: Final answer
    x = 29,939.31

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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.