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Finding the Fourth Proportional to 79,171.93, 109,230.14 and 45,155.84

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Solution

The fourth proportional to 79,171.93, 109,230.14 and 45,155.84 is: 62,299.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,171.93 : 109,230.14 = 45,155.84 : x
  2. Step 2: Convert to fraction form
    79,171.93/109,230.14 = 45,155.84/x
  3. Step 3: Cross multiply
    79,171.93x = 109,230.14 × 45,155.84
  4. Step 4: Simplify right side
    79,171.93x = 4,932,378,499.24
  5. Step 5: Solve for x
    x = 4,932,378,499.24/79,171.93
  6. Step 6: Final answer
    x = 62,299.59

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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.