Home / 74,960.43-112,385.04-45,371.33

Finding the Fourth Proportional to 74,960.43, 112,385.04 and 45,371.33

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Solution

The fourth proportional to 74,960.43, 112,385.04 and 45,371.33 is: 68,023.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,960.43 : 112,385.04 = 45,371.33 : x
  2. Step 2: Convert to fraction form
    74,960.43/112,385.04 = 45,371.33/x
  3. Step 3: Cross multiply
    74,960.43x = 112,385.04 × 45,371.33
  4. Step 4: Simplify right side
    74,960.43x = 5,099,058,174.98
  5. Step 5: Solve for x
    x = 5,099,058,174.98/74,960.43
  6. Step 6: Final answer
    x = 68,023.33

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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.