Home / 81,518.60-122,329.85-37,149.84

Finding the Fourth Proportional to 81,518.60, 122,329.85 and 37,149.84

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Solution

The fourth proportional to 81,518.60, 122,329.85 and 37,149.84 is: 55,748.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,518.60 : 122,329.85 = 37,149.84 : x
  2. Step 2: Convert to fraction form
    81,518.60/122,329.85 = 37,149.84/x
  3. Step 3: Cross multiply
    81,518.60x = 122,329.85 × 37,149.84
  4. Step 4: Simplify right side
    81,518.60x = 4,544,534,168.97
  5. Step 5: Solve for x
    x = 4,544,534,168.97/81,518.60
  6. Step 6: Final answer
    x = 55,748.43

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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.