Home / 72,865.88-109,303.20-22,947.60

Finding the Fourth Proportional to 72,865.88, 109,303.20 and 22,947.60

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Solution

The fourth proportional to 72,865.88, 109,303.20 and 22,947.60 is: 34,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,865.88 : 109,303.20 = 22,947.60 : x
  2. Step 2: Convert to fraction form
    72,865.88/109,303.20 = 22,947.60/x
  3. Step 3: Cross multiply
    72,865.88x = 109,303.20 × 22,947.60
  4. Step 4: Simplify right side
    72,865.88x = 2,508,246,112.32
  5. Step 5: Solve for x
    x = 2,508,246,112.32/72,865.88
  6. Step 6: Final answer
    x = 34,422.78

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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.