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Finding the Fourth Proportional to 79,244.95, 118,867.23 and 20,080.45

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Solution

The fourth proportional to 79,244.95, 118,867.23 and 20,080.45 is: 30,120.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,244.95 : 118,867.23 = 20,080.45 : x
  2. Step 2: Convert to fraction form
    79,244.95/118,867.23 = 20,080.45/x
  3. Step 3: Cross multiply
    79,244.95x = 118,867.23 × 20,080.45
  4. Step 4: Simplify right side
    79,244.95x = 2,386,907,468.65
  5. Step 5: Solve for x
    x = 2,386,907,468.65/79,244.95
  6. Step 6: Final answer
    x = 30,120.63

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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.