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Finding the Fourth Proportional to 51,105.88, 76,658.76 and 14,169.88

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Solution

The fourth proportional to 51,105.88, 76,658.76 and 14,169.88 is: 21,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,105.88 : 76,658.76 = 14,169.88 : x
  2. Step 2: Convert to fraction form
    51,105.88/76,658.76 = 14,169.88/x
  3. Step 3: Cross multiply
    51,105.88x = 76,658.76 × 14,169.88
  4. Step 4: Simplify right side
    51,105.88x = 1,086,245,430.15
  5. Step 5: Solve for x
    x = 1,086,245,430.15/51,105.88
  6. Step 6: Final answer
    x = 21,254.80

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1.5x scale

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.