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Finding the Fourth Proportional to 80,758.98, 121,043.52 and 36,333.72

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Solution

The fourth proportional to 80,758.98, 121,043.52 and 36,333.72 is: 54,457.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,758.98 : 121,043.52 = 36,333.72 : x
  2. Step 2: Convert to fraction form
    80,758.98/121,043.52 = 36,333.72/x
  3. Step 3: Cross multiply
    80,758.98x = 121,043.52 × 36,333.72
  4. Step 4: Simplify right side
    80,758.98x = 4,397,961,363.49
  5. Step 5: Solve for x
    x = 4,397,961,363.49/80,758.98
  6. Step 6: Final answer
    x = 54,457.86

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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.