Home / 80,573.06-120,861.96-38,457.56

Finding the Fourth Proportional to 80,573.06, 120,861.96 and 38,457.56

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Solution

The fourth proportional to 80,573.06, 120,861.96 and 38,457.56 is: 57,687.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,573.06 : 120,861.96 = 38,457.56 : x
  2. Step 2: Convert to fraction form
    80,573.06/120,861.96 = 38,457.56/x
  3. Step 3: Cross multiply
    80,573.06x = 120,861.96 × 38,457.56
  4. Step 4: Simplify right side
    80,573.06x = 4,648,056,078.42
  5. Step 5: Solve for x
    x = 4,648,056,078.42/80,573.06
  6. Step 6: Final answer
    x = 57,687.47

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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.