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Finding the Fourth Proportional to 64,645.68, 96,768.04 and 34,989.96

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Solution

The fourth proportional to 64,645.68, 96,768.04 and 34,989.96 is: 52,376.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,645.68 : 96,768.04 = 34,989.96 : x
  2. Step 2: Convert to fraction form
    64,645.68/96,768.04 = 34,989.96/x
  3. Step 3: Cross multiply
    64,645.68x = 96,768.04 × 34,989.96
  4. Step 4: Simplify right side
    64,645.68x = 3,385,909,848.88
  5. Step 5: Solve for x
    x = 3,385,909,848.88/64,645.68
  6. Step 6: Final answer
    x = 52,376.43

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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.