Home / 90,964.20-125,519.72-52,200.05

Finding the Fourth Proportional to 90,964.20, 125,519.72 and 52,200.05

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Solution

The fourth proportional to 90,964.20, 125,519.72 and 52,200.05 is: 72,029.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,964.20 : 125,519.72 = 52,200.05 : x
  2. Step 2: Convert to fraction form
    90,964.20/125,519.72 = 52,200.05/x
  3. Step 3: Cross multiply
    90,964.20x = 125,519.72 × 52,200.05
  4. Step 4: Simplify right side
    90,964.20x = 6,552,134,771.39
  5. Step 5: Solve for x
    x = 6,552,134,771.39/90,964.20
  6. Step 6: Final answer
    x = 72,029.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.