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Finding the Fourth Proportional to 75,556.80, 113,205.60 and 36,028.80

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Solution

The fourth proportional to 75,556.80, 113,205.60 and 36,028.80 is: 53,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,556.80 : 113,205.60 = 36,028.80 : x
  2. Step 2: Convert to fraction form
    75,556.80/113,205.60 = 36,028.80/x
  3. Step 3: Cross multiply
    75,556.80x = 113,205.60 × 36,028.80
  4. Step 4: Simplify right side
    75,556.80x = 4,078,661,921.28
  5. Step 5: Solve for x
    x = 4,078,661,921.28/75,556.80
  6. Step 6: Final answer
    x = 53,981.40

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1.5x scale

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.