Home / 77,022.78-115,553.13-45,458.94

Finding the Fourth Proportional to 77,022.78, 115,553.13 and 45,458.94

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Solution

The fourth proportional to 77,022.78, 115,553.13 and 45,458.94 is: 68,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,022.78 : 115,553.13 = 45,458.94 : x
  2. Step 2: Convert to fraction form
    77,022.78/115,553.13 = 45,458.94/x
  3. Step 3: Cross multiply
    77,022.78x = 115,553.13 × 45,458.94
  4. Step 4: Simplify right side
    77,022.78x = 5,252,922,803.48
  5. Step 5: Solve for x
    x = 5,252,922,803.48/77,022.78
  6. Step 6: Final answer
    x = 68,199.60

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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.