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Finding the Fourth Proportional to 79,219.08, 118,828.62 and 19,247.22

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Solution

The fourth proportional to 79,219.08, 118,828.62 and 19,247.22 is: 28,870.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,219.08 : 118,828.62 = 19,247.22 : x
  2. Step 2: Convert to fraction form
    79,219.08/118,828.62 = 19,247.22/x
  3. Step 3: Cross multiply
    79,219.08x = 118,828.62 × 19,247.22
  4. Step 4: Simplify right side
    79,219.08x = 2,287,120,591.44
  5. Step 5: Solve for x
    x = 2,287,120,591.44/79,219.08
  6. Step 6: Final answer
    x = 28,870.83

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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.