Home / 79,296.82-109,428.60-45,305.05

Finding the Fourth Proportional to 79,296.82, 109,428.60 and 45,305.05

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Solution

The fourth proportional to 79,296.82, 109,428.60 and 45,305.05 is: 62,520.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,296.82 : 109,428.60 = 45,305.05 : x
  2. Step 2: Convert to fraction form
    79,296.82/109,428.60 = 45,305.05/x
  3. Step 3: Cross multiply
    79,296.82x = 109,428.60 × 45,305.05
  4. Step 4: Simplify right side
    79,296.82x = 4,957,667,605.90
  5. Step 5: Solve for x
    x = 4,957,667,605.90/79,296.82
  6. Step 6: Final answer
    x = 62,520.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.