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Finding the Fourth Proportional to 55,929.18, 77,183.29 and 30,778.14

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Solution

The fourth proportional to 55,929.18, 77,183.29 and 30,778.14 is: 42,474.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,929.18 : 77,183.29 = 30,778.14 : x
  2. Step 2: Convert to fraction form
    55,929.18/77,183.29 = 30,778.14/x
  3. Step 3: Cross multiply
    55,929.18x = 77,183.29 × 30,778.14
  4. Step 4: Simplify right side
    55,929.18x = 2,375,557,738.90
  5. Step 5: Solve for x
    x = 2,375,557,738.90/55,929.18
  6. Step 6: Final answer
    x = 42,474.39

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