Home / 77,114.32-115,688.52-32,778.96

Finding the Fourth Proportional to 77,114.32, 115,688.52 and 32,778.96

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Solution

The fourth proportional to 77,114.32, 115,688.52 and 32,778.96 is: 49,175.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,114.32 : 115,688.52 = 32,778.96 : x
  2. Step 2: Convert to fraction form
    77,114.32/115,688.52 = 32,778.96/x
  3. Step 3: Cross multiply
    77,114.32x = 115,688.52 × 32,778.96
  4. Step 4: Simplify right side
    77,114.32x = 3,792,149,369.54
  5. Step 5: Solve for x
    x = 3,792,149,369.54/77,114.32
  6. Step 6: Final answer
    x = 49,175.68

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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.