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Finding the Fourth Proportional to 72,775.00, 109,162.48 and 20,184.49

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Solution

The fourth proportional to 72,775.00, 109,162.48 and 20,184.49 is: 30,276.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,775.00 : 109,162.48 = 20,184.49 : x
  2. Step 2: Convert to fraction form
    72,775.00/109,162.48 = 20,184.49/x
  3. Step 3: Cross multiply
    72,775.00x = 109,162.48 × 20,184.49
  4. Step 4: Simplify right side
    72,775.00x = 2,203,388,440.12
  5. Step 5: Solve for x
    x = 2,203,388,440.12/72,775.00
  6. Step 6: Final answer
    x = 30,276.72

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Similar ratio
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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.