Home / 80,756.16-121,145.32-27,433.82

Finding the Fourth Proportional to 80,756.16, 121,145.32 and 27,433.82

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Solution

The fourth proportional to 80,756.16, 121,145.32 and 27,433.82 is: 41,154.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,756.16 : 121,145.32 = 27,433.82 : x
  2. Step 2: Convert to fraction form
    80,756.16/121,145.32 = 27,433.82/x
  3. Step 3: Cross multiply
    80,756.16x = 121,145.32 × 27,433.82
  4. Step 4: Simplify right side
    80,756.16x = 3,323,478,902.72
  5. Step 5: Solve for x
    x = 3,323,478,902.72/80,756.16
  6. Step 6: Final answer
    x = 41,154.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.