Home / 75,981.60-113,936.61-44,400.78

Finding the Fourth Proportional to 75,981.60, 113,936.61 and 44,400.78

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Solution

The fourth proportional to 75,981.60, 113,936.61 and 44,400.78 is: 66,580.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,981.60 : 113,936.61 = 44,400.78 : x
  2. Step 2: Convert to fraction form
    75,981.60/113,936.61 = 44,400.78/x
  3. Step 3: Cross multiply
    75,981.60x = 113,936.61 × 44,400.78
  4. Step 4: Simplify right side
    75,981.60x = 5,058,874,354.56
  5. Step 5: Solve for x
    x = 5,058,874,354.56/75,981.60
  6. Step 6: Final answer
    x = 66,580.26

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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.