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Finding the Fourth Proportional to 80,031.09, 119,950.74 and 37,278.90

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Solution

The fourth proportional to 80,031.09, 119,950.74 and 37,278.90 is: 55,873.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,031.09 : 119,950.74 = 37,278.90 : x
  2. Step 2: Convert to fraction form
    80,031.09/119,950.74 = 37,278.90/x
  3. Step 3: Cross multiply
    80,031.09x = 119,950.74 × 37,278.90
  4. Step 4: Simplify right side
    80,031.09x = 4,471,631,641.39
  5. Step 5: Solve for x
    x = 4,471,631,641.39/80,031.09
  6. Step 6: Final answer
    x = 55,873.68

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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.