Home / 80,316.26-120,659.10-56,678.24

Finding the Fourth Proportional to 80,316.26, 120,659.10 and 56,678.24

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Solution

The fourth proportional to 80,316.26, 120,659.10 and 56,678.24 is: 85,147.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,316.26 : 120,659.10 = 56,678.24 : x
  2. Step 2: Convert to fraction form
    80,316.26/120,659.10 = 56,678.24/x
  3. Step 3: Cross multiply
    80,316.26x = 120,659.10 × 56,678.24
  4. Step 4: Simplify right side
    80,316.26x = 6,838,745,427.98
  5. Step 5: Solve for x
    x = 6,838,745,427.98/80,316.26
  6. Step 6: Final answer
    x = 85,147.71

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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.