Home / 80,587.80-120,840.19-36,176.49

Finding the Fourth Proportional to 80,587.80, 120,840.19 and 36,176.49

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Solution

The fourth proportional to 80,587.80, 120,840.19 and 36,176.49 is: 54,246.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,587.80 : 120,840.19 = 36,176.49 : x
  2. Step 2: Convert to fraction form
    80,587.80/120,840.19 = 36,176.49/x
  3. Step 3: Cross multiply
    80,587.80x = 120,840.19 × 36,176.49
  4. Step 4: Simplify right side
    80,587.80x = 4,371,573,834.69
  5. Step 5: Solve for x
    x = 4,371,573,834.69/80,587.80
  6. Step 6: Final answer
    x = 54,246.10

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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.