Home / 63,421.80-95,143.61-21,305.90

Finding the Fourth Proportional to 63,421.80, 95,143.61 and 21,305.90

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Solution

The fourth proportional to 63,421.80, 95,143.61 and 21,305.90 is: 31,962.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,421.80 : 95,143.61 = 21,305.90 : x
  2. Step 2: Convert to fraction form
    63,421.80/95,143.61 = 21,305.90/x
  3. Step 3: Cross multiply
    63,421.80x = 95,143.61 × 21,305.90
  4. Step 4: Simplify right side
    63,421.80x = 2,027,120,240.30
  5. Step 5: Solve for x
    x = 2,027,120,240.30/63,421.80
  6. Step 6: Final answer
    x = 31,962.52

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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.