Home / 63,458.21-87,561.20-36,221.85

Finding the Fourth Proportional to 63,458.21, 87,561.20 and 36,221.85

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Solution

The fourth proportional to 63,458.21, 87,561.20 and 36,221.85 is: 49,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,458.21 : 87,561.20 = 36,221.85 : x
  2. Step 2: Convert to fraction form
    63,458.21/87,561.20 = 36,221.85/x
  3. Step 3: Cross multiply
    63,458.21x = 87,561.20 × 36,221.85
  4. Step 4: Simplify right side
    63,458.21x = 3,171,628,471.11
  5. Step 5: Solve for x
    x = 3,171,628,471.11/63,458.21
  6. Step 6: Final answer
    x = 49,979.80

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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.