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Finding the Fourth Proportional to 172,885.26, 259,327.95 and 54,565.86

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Solution

The fourth proportional to 172,885.26, 259,327.95 and 54,565.86 is: 81,848.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,885.26 : 259,327.95 = 54,565.86 : x
  2. Step 2: Convert to fraction form
    172,885.26/259,327.95 = 54,565.86/x
  3. Step 3: Cross multiply
    172,885.26x = 259,327.95 × 54,565.86
  4. Step 4: Simplify right side
    172,885.26x = 14,150,452,613.79
  5. Step 5: Solve for x
    x = 14,150,452,613.79/172,885.26
  6. Step 6: Final answer
    x = 81,848.81

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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.