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Finding the Fourth Proportional to 74,529, 102,850.02 and 40,995

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Solution

The fourth proportional to 74,529, 102,850.02 and 40,995 is: 56,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,529 : 102,850.02 = 40,995 : x
  2. Step 2: Convert to fraction form
    74,529/102,850.02 = 40,995/x
  3. Step 3: Cross multiply
    74,529x = 102,850.02 × 40,995
  4. Step 4: Simplify right side
    74,529x = 4,216,336,569.90
  5. Step 5: Solve for x
    x = 4,216,336,569.90/74,529
  6. Step 6: Final answer
    x = 56,573.10

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Why These Related Problems?

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