Home / 72,688.20-108,959.40-33,273.60

Finding the Fourth Proportional to 72,688.20, 108,959.40 and 33,273.60

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Solution

The fourth proportional to 72,688.20, 108,959.40 and 33,273.60 is: 49,877.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,688.20 : 108,959.40 = 33,273.60 : x
  2. Step 2: Convert to fraction form
    72,688.20/108,959.40 = 33,273.60/x
  3. Step 3: Cross multiply
    72,688.20x = 108,959.40 × 33,273.60
  4. Step 4: Simplify right side
    72,688.20x = 3,625,471,491.84
  5. Step 5: Solve for x
    x = 3,625,471,491.84/72,688.20
  6. Step 6: Final answer
    x = 49,877.03

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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.