Home / 80,418.52-120,667.08-56,877.34

Finding the Fourth Proportional to 80,418.52, 120,667.08 and 56,877.34

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Solution

The fourth proportional to 80,418.52, 120,667.08 and 56,877.34 is: 85,343.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,418.52 : 120,667.08 = 56,877.34 : x
  2. Step 2: Convert to fraction form
    80,418.52/120,667.08 = 56,877.34/x
  3. Step 3: Cross multiply
    80,418.52x = 120,667.08 × 56,877.34
  4. Step 4: Simplify right side
    80,418.52x = 6,863,222,535.97
  5. Step 5: Solve for x
    x = 6,863,222,535.97/80,418.52
  6. Step 6: Final answer
    x = 85,343.81

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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.