Home / 75,396.48-104,039.28-43,575.60

Finding the Fourth Proportional to 75,396.48, 104,039.28 and 43,575.60

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Solution

The fourth proportional to 75,396.48, 104,039.28 and 43,575.60 is: 60,129.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,396.48 : 104,039.28 = 43,575.60 : x
  2. Step 2: Convert to fraction form
    75,396.48/104,039.28 = 43,575.60/x
  3. Step 3: Cross multiply
    75,396.48x = 104,039.28 × 43,575.60
  4. Step 4: Simplify right side
    75,396.48x = 4,533,574,049.57
  5. Step 5: Solve for x
    x = 4,533,574,049.57/75,396.48
  6. Step 6: Final answer
    x = 60,129.78

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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.