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Finding the Fourth Proportional to 80,702.43, 120,994.86 and 37,993.05

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Solution

The fourth proportional to 80,702.43, 120,994.86 and 37,993.05 is: 56,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,702.43 : 120,994.86 = 37,993.05 : x
  2. Step 2: Convert to fraction form
    80,702.43/120,994.86 = 37,993.05/x
  3. Step 3: Cross multiply
    80,702.43x = 120,994.86 × 37,993.05
  4. Step 4: Simplify right side
    80,702.43x = 4,596,963,908.20
  5. Step 5: Solve for x
    x = 4,596,963,908.20/80,702.43
  6. Step 6: Final answer
    x = 56,961.90

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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.