Home / 75,635.82-113,440.37-28,240.29

Finding the Fourth Proportional to 75,635.82, 113,440.37 and 28,240.29

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Solution

The fourth proportional to 75,635.82, 113,440.37 and 28,240.29 is: 42,355.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,635.82 : 113,440.37 = 28,240.29 : x
  2. Step 2: Convert to fraction form
    75,635.82/113,440.37 = 28,240.29/x
  3. Step 3: Cross multiply
    75,635.82x = 113,440.37 × 28,240.29
  4. Step 4: Simplify right side
    75,635.82x = 3,203,588,805.31
  5. Step 5: Solve for x
    x = 3,203,588,805.31/75,635.82
  6. Step 6: Final answer
    x = 42,355.44

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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.