Home / 63,421.20-87,380.28-41,872.68

Finding the Fourth Proportional to 63,421.20, 87,380.28 and 41,872.68

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Solution

The fourth proportional to 63,421.20, 87,380.28 and 41,872.68 is: 57,691.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,421.20 : 87,380.28 = 41,872.68 : x
  2. Step 2: Convert to fraction form
    63,421.20/87,380.28 = 41,872.68/x
  3. Step 3: Cross multiply
    63,421.20x = 87,380.28 × 41,872.68
  4. Step 4: Simplify right side
    63,421.20x = 3,658,846,502.75
  5. Step 5: Solve for x
    x = 3,658,846,502.75/63,421.20
  6. Step 6: Final answer
    x = 57,691.22

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1.5x scale

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.