Home / 75,819.12-113,728.41-23,221.77

Finding the Fourth Proportional to 75,819.12, 113,728.41 and 23,221.77

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Solution

The fourth proportional to 75,819.12, 113,728.41 and 23,221.77 is: 34,832.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,819.12 : 113,728.41 = 23,221.77 : x
  2. Step 2: Convert to fraction form
    75,819.12/113,728.41 = 23,221.77/x
  3. Step 3: Cross multiply
    75,819.12x = 113,728.41 × 23,221.77
  4. Step 4: Simplify right side
    75,819.12x = 2,640,974,979.49
  5. Step 5: Solve for x
    x = 2,640,974,979.49/75,819.12
  6. Step 6: Final answer
    x = 34,832.57

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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.