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Finding the Fourth Proportional to 51,100.88, 76,712.87 and 36,879.91

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Solution

The fourth proportional to 51,100.88, 76,712.87 and 36,879.91 is: 55,364.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,100.88 : 76,712.87 = 36,879.91 : x
  2. Step 2: Convert to fraction form
    51,100.88/76,712.87 = 36,879.91/x
  3. Step 3: Cross multiply
    51,100.88x = 76,712.87 × 36,879.91
  4. Step 4: Simplify right side
    51,100.88x = 2,829,163,641.86
  5. Step 5: Solve for x
    x = 2,829,163,641.86/51,100.88
  6. Step 6: Final answer
    x = 55,364.29

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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.