Home / 75,428.38-104,109.87-43,592.68

Finding the Fourth Proportional to 75,428.38, 104,109.87 and 43,592.68

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Solution

The fourth proportional to 75,428.38, 104,109.87 and 43,592.68 is: 60,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,428.38 : 104,109.87 = 43,592.68 : x
  2. Step 2: Convert to fraction form
    75,428.38/104,109.87 = 43,592.68/x
  3. Step 3: Cross multiply
    75,428.38x = 104,109.87 × 43,592.68
  4. Step 4: Simplify right side
    75,428.38x = 4,538,428,247.75
  5. Step 5: Solve for x
    x = 4,538,428,247.75/75,428.38
  6. Step 6: Final answer
    x = 60,168.71

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1.5x scale

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.