Home / 75,105.45-103,650.54-43,276.41

Finding the Fourth Proportional to 75,105.45, 103,650.54 and 43,276.41

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Solution

The fourth proportional to 75,105.45, 103,650.54 and 43,276.41 is: 59,724.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,105.45 : 103,650.54 = 43,276.41 : x
  2. Step 2: Convert to fraction form
    75,105.45/103,650.54 = 43,276.41/x
  3. Step 3: Cross multiply
    75,105.45x = 103,650.54 × 43,276.41
  4. Step 4: Simplify right side
    75,105.45x = 4,485,623,265.76
  5. Step 5: Solve for x
    x = 4,485,623,265.76/75,105.45
  6. Step 6: Final answer
    x = 59,724.34

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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.