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Finding the Fourth Proportional to 79,752.60, 119,629.35 and 20,584.22

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Solution

The fourth proportional to 79,752.60, 119,629.35 and 20,584.22 is: 30,876.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,752.60 : 119,629.35 = 20,584.22 : x
  2. Step 2: Convert to fraction form
    79,752.60/119,629.35 = 20,584.22/x
  3. Step 3: Cross multiply
    79,752.60x = 119,629.35 × 20,584.22
  4. Step 4: Simplify right side
    79,752.60x = 2,462,476,755.94
  5. Step 5: Solve for x
    x = 2,462,476,755.94/79,752.60
  6. Step 6: Final answer
    x = 30,876.45

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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.