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Finding the Fourth Proportional to 79,523.54, 119,284.72 and 20,359.12

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Solution

The fourth proportional to 79,523.54, 119,284.72 and 20,359.12 is: 30,538.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,523.54 : 119,284.72 = 20,359.12 : x
  2. Step 2: Convert to fraction form
    79,523.54/119,284.72 = 20,359.12/x
  3. Step 3: Cross multiply
    79,523.54x = 119,284.72 × 20,359.12
  4. Step 4: Simplify right side
    79,523.54x = 2,428,531,928.65
  5. Step 5: Solve for x
    x = 2,428,531,928.65/79,523.54
  6. Step 6: Final answer
    x = 30,538.53

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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.