Home / 81,082.22-121,572.99-33,730.49

Finding the Fourth Proportional to 81,082.22, 121,572.99 and 33,730.49

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Solution

The fourth proportional to 81,082.22, 121,572.99 and 33,730.49 is: 50,574.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,082.22 : 121,572.99 = 33,730.49 : x
  2. Step 2: Convert to fraction form
    81,082.22/121,572.99 = 33,730.49/x
  3. Step 3: Cross multiply
    81,082.22x = 121,572.99 × 33,730.49
  4. Step 4: Simplify right side
    81,082.22x = 4,100,715,746.95
  5. Step 5: Solve for x
    x = 4,100,715,746.95/81,082.22
  6. Step 6: Final answer
    x = 50,574.78

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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.