Home / 80,941.58-121,426.98-36,589.22

Finding the Fourth Proportional to 80,941.58, 121,426.98 and 36,589.22

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Solution

The fourth proportional to 80,941.58, 121,426.98 and 36,589.22 is: 54,890.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,941.58 : 121,426.98 = 36,589.22 : x
  2. Step 2: Convert to fraction form
    80,941.58/121,426.98 = 36,589.22/x
  3. Step 3: Cross multiply
    80,941.58x = 121,426.98 × 36,589.22
  4. Step 4: Simplify right side
    80,941.58x = 4,442,918,485.16
  5. Step 5: Solve for x
    x = 4,442,918,485.16/80,941.58
  6. Step 6: Final answer
    x = 54,890.43

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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.