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Finding the Fourth Proportional to 80,012.77, 119,934.90 and 26,690.47

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Solution

The fourth proportional to 80,012.77, 119,934.90 and 26,690.47 is: 40,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,012.77 : 119,934.90 = 26,690.47 : x
  2. Step 2: Convert to fraction form
    80,012.77/119,934.90 = 26,690.47/x
  3. Step 3: Cross multiply
    80,012.77x = 119,934.90 × 26,690.47
  4. Step 4: Simplify right side
    80,012.77x = 3,201,118,550.57
  5. Step 5: Solve for x
    x = 3,201,118,550.57/80,012.77
  6. Step 6: Final answer
    x = 40,007.60

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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.