Home / 80,398.91-120,587.19-56,310.25

Finding the Fourth Proportional to 80,398.91, 120,587.19 and 56,310.25

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Solution

The fourth proportional to 80,398.91, 120,587.19 and 56,310.25 is: 84,457.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,398.91 : 120,587.19 = 56,310.25 : x
  2. Step 2: Convert to fraction form
    80,398.91/120,587.19 = 56,310.25/x
  3. Step 3: Cross multiply
    80,398.91x = 120,587.19 × 56,310.25
  4. Step 4: Simplify right side
    80,398.91x = 6,790,294,232.68
  5. Step 5: Solve for x
    x = 6,790,294,232.68/80,398.91
  6. Step 6: Final answer
    x = 84,457.55

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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.