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Finding the Fourth Proportional to 64,472.68, 96,709.66 and 19,494.40

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Solution

The fourth proportional to 64,472.68, 96,709.66 and 19,494.40 is: 29,241.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,472.68 : 96,709.66 = 19,494.40 : x
  2. Step 2: Convert to fraction form
    64,472.68/96,709.66 = 19,494.40/x
  3. Step 3: Cross multiply
    64,472.68x = 96,709.66 × 19,494.40
  4. Step 4: Simplify right side
    64,472.68x = 1,885,296,795.90
  5. Step 5: Solve for x
    x = 1,885,296,795.90/64,472.68
  6. Step 6: Final answer
    x = 29,241.79

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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.