Home / 75,480.40-113,148.60-28,082.80

Finding the Fourth Proportional to 75,480.40, 113,148.60 and 28,082.80

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Solution

The fourth proportional to 75,480.40, 113,148.60 and 28,082.80 is: 42,097.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,480.40 : 113,148.60 = 28,082.80 : x
  2. Step 2: Convert to fraction form
    75,480.40/113,148.60 = 28,082.80/x
  3. Step 3: Cross multiply
    75,480.40x = 113,148.60 × 28,082.80
  4. Step 4: Simplify right side
    75,480.40x = 3,177,529,504.08
  5. Step 5: Solve for x
    x = 3,177,529,504.08/75,480.40
  6. Step 6: Final answer
    x = 42,097.41

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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.