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Finding the Fourth Proportional to 64,330.86, 88,819.92 and 40,168.62

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Solution

The fourth proportional to 64,330.86, 88,819.92 and 40,168.62 is: 55,459.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,330.86 : 88,819.92 = 40,168.62 : x
  2. Step 2: Convert to fraction form
    64,330.86/88,819.92 = 40,168.62/x
  3. Step 3: Cross multiply
    64,330.86x = 88,819.92 × 40,168.62
  4. Step 4: Simplify right side
    64,330.86x = 3,567,773,614.91
  5. Step 5: Solve for x
    x = 3,567,773,614.91/64,330.86
  6. Step 6: Final answer
    x = 55,459.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.