Home / 54,329.90-81,300.45-49,664.30

Finding the Fourth Proportional to 54,329.90, 81,300.45 and 49,664.30

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Solution

The fourth proportional to 54,329.90, 81,300.45 and 49,664.30 is: 74,318.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,329.90 : 81,300.45 = 49,664.30 : x
  2. Step 2: Convert to fraction form
    54,329.90/81,300.45 = 49,664.30/x
  3. Step 3: Cross multiply
    54,329.90x = 81,300.45 × 49,664.30
  4. Step 4: Simplify right side
    54,329.90x = 4,037,729,938.94
  5. Step 5: Solve for x
    x = 4,037,729,938.94/54,329.90
  6. Step 6: Final answer
    x = 74,318.74

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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.