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Finding the Fourth Proportional to 74,321.04, 102,562.02 and 40,787.04

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Solution

The fourth proportional to 74,321.04, 102,562.02 and 40,787.04 is: 56,285.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,321.04 : 102,562.02 = 40,787.04 : x
  2. Step 2: Convert to fraction form
    74,321.04/102,562.02 = 40,787.04/x
  3. Step 3: Cross multiply
    74,321.04x = 102,562.02 × 40,787.04
  4. Step 4: Simplify right side
    74,321.04x = 4,183,201,212.22
  5. Step 5: Solve for x
    x = 4,183,201,212.22/74,321.04
  6. Step 6: Final answer
    x = 56,285.56

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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.