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Finding the Fourth Proportional to 77,006.78, 115,565.46 and 32,645.96

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Solution

The fourth proportional to 77,006.78, 115,565.46 and 32,645.96 is: 48,992.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,006.78 : 115,565.46 = 32,645.96 : x
  2. Step 2: Convert to fraction form
    77,006.78/115,565.46 = 32,645.96/x
  3. Step 3: Cross multiply
    77,006.78x = 115,565.46 × 32,645.96
  4. Step 4: Simplify right side
    77,006.78x = 3,772,745,384.54
  5. Step 5: Solve for x
    x = 3,772,745,384.54/77,006.78
  6. Step 6: Final answer
    x = 48,992.38

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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.