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Finding the Fourth Proportional to 79,145.57, 118,724.53 and 22,986.60

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Solution

The fourth proportional to 79,145.57, 118,724.53 and 22,986.60 is: 34,481.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,145.57 : 118,724.53 = 22,986.60 : x
  2. Step 2: Convert to fraction form
    79,145.57/118,724.53 = 22,986.60/x
  3. Step 3: Cross multiply
    79,145.57x = 118,724.53 × 22,986.60
  4. Step 4: Simplify right side
    79,145.57x = 2,729,073,281.30
  5. Step 5: Solve for x
    x = 2,729,073,281.30/79,145.57
  6. Step 6: Final answer
    x = 34,481.69

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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.