Home / 74,761.94-103,173.96-40,772.29

Finding the Fourth Proportional to 74,761.94, 103,173.96 and 40,772.29

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Solution

The fourth proportional to 74,761.94, 103,173.96 and 40,772.29 is: 56,267.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,761.94 : 103,173.96 = 40,772.29 : x
  2. Step 2: Convert to fraction form
    74,761.94/103,173.96 = 40,772.29/x
  3. Step 3: Cross multiply
    74,761.94x = 103,173.96 × 40,772.29
  4. Step 4: Simplify right side
    74,761.94x = 4,206,638,101.70
  5. Step 5: Solve for x
    x = 4,206,638,101.70/74,761.94
  6. Step 6: Final answer
    x = 56,267.11

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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.