Home / 80,798.22-121,198.14-28,209.06

Finding the Fourth Proportional to 80,798.22, 121,198.14 and 28,209.06

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Solution

The fourth proportional to 80,798.22, 121,198.14 and 28,209.06 is: 42,313.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,798.22 : 121,198.14 = 28,209.06 : x
  2. Step 2: Convert to fraction form
    80,798.22/121,198.14 = 28,209.06/x
  3. Step 3: Cross multiply
    80,798.22x = 121,198.14 × 28,209.06
  4. Step 4: Simplify right side
    80,798.22x = 3,418,885,603.15
  5. Step 5: Solve for x
    x = 3,418,885,603.15/80,798.22
  6. Step 6: Final answer
    x = 42,313.87

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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.