Home / 63,587.80-87,738.42-40,891.24

Finding the Fourth Proportional to 63,587.80, 87,738.42 and 40,891.24

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Solution

The fourth proportional to 63,587.80, 87,738.42 and 40,891.24 is: 56,421.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,587.80 : 87,738.42 = 40,891.24 : x
  2. Step 2: Convert to fraction form
    63,587.80/87,738.42 = 40,891.24/x
  3. Step 3: Cross multiply
    63,587.80x = 87,738.42 × 40,891.24
  4. Step 4: Simplify right side
    63,587.80x = 3,587,732,789.44
  5. Step 5: Solve for x
    x = 3,587,732,789.44/63,587.80
  6. Step 6: Final answer
    x = 56,421.72

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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.