Home / 75,616.40-113,352.60-28,218.80

Finding the Fourth Proportional to 75,616.40, 113,352.60 and 28,218.80

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Solution

The fourth proportional to 75,616.40, 113,352.60 and 28,218.80 is: 42,301.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,616.40 : 113,352.60 = 28,218.80 : x
  2. Step 2: Convert to fraction form
    75,616.40/113,352.60 = 28,218.80/x
  3. Step 3: Cross multiply
    75,616.40x = 113,352.60 × 28,218.80
  4. Step 4: Simplify right side
    75,616.40x = 3,198,674,348.88
  5. Step 5: Solve for x
    x = 3,198,674,348.88/75,616.40
  6. Step 6: Final answer
    x = 42,301.33

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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.