Home / 72,577.20-108,878.54-33,138.30

Finding the Fourth Proportional to 72,577.20, 108,878.54 and 33,138.30

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Solution

The fourth proportional to 72,577.20, 108,878.54 and 33,138.30 is: 49,713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,577.20 : 108,878.54 = 33,138.30 : x
  2. Step 2: Convert to fraction form
    72,577.20/108,878.54 = 33,138.30/x
  3. Step 3: Cross multiply
    72,577.20x = 108,878.54 × 33,138.30
  4. Step 4: Simplify right side
    72,577.20x = 3,608,049,722.08
  5. Step 5: Solve for x
    x = 3,608,049,722.08/72,577.20
  6. Step 6: Final answer
    x = 49,713.27

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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.