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Finding the Fourth Proportional to 76,310.98, 114,336.87 and 36,886.66

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Solution

The fourth proportional to 76,310.98, 114,336.87 and 36,886.66 is: 55,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,310.98 : 114,336.87 = 36,886.66 : x
  2. Step 2: Convert to fraction form
    76,310.98/114,336.87 = 36,886.66/x
  3. Step 3: Cross multiply
    76,310.98x = 114,336.87 × 36,886.66
  4. Step 4: Simplify right side
    76,310.98x = 4,217,505,249.15
  5. Step 5: Solve for x
    x = 4,217,505,249.15/76,310.98
  6. Step 6: Final answer
    x = 55,267.34

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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.