Home / 72,932.20-109,179.60-43,334.80

Finding the Fourth Proportional to 72,932.20, 109,179.60 and 43,334.80

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Solution

The fourth proportional to 72,932.20, 109,179.60 and 43,334.80 is: 64,872.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,932.20 : 109,179.60 = 43,334.80 : x
  2. Step 2: Convert to fraction form
    72,932.20/109,179.60 = 43,334.80/x
  3. Step 3: Cross multiply
    72,932.20x = 109,179.60 × 43,334.80
  4. Step 4: Simplify right side
    72,932.20x = 4,731,276,130.08
  5. Step 5: Solve for x
    x = 4,731,276,130.08/72,932.20
  6. Step 6: Final answer
    x = 64,872.25

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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.