Home / 80,678.58-120,976.18-36,267.45

Finding the Fourth Proportional to 80,678.58, 120,976.18 and 36,267.45

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Solution

The fourth proportional to 80,678.58, 120,976.18 and 36,267.45 is: 54,382.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,678.58 : 120,976.18 = 36,267.45 : x
  2. Step 2: Convert to fraction form
    80,678.58/120,976.18 = 36,267.45/x
  3. Step 3: Cross multiply
    80,678.58x = 120,976.18 × 36,267.45
  4. Step 4: Simplify right side
    80,678.58x = 4,387,497,219.02
  5. Step 5: Solve for x
    x = 4,387,497,219.02/80,678.58
  6. Step 6: Final answer
    x = 54,382.43

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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.