Home / 80,818.11-111,587.90-58,199.67

Finding the Fourth Proportional to 80,818.11, 111,587.90 and 58,199.67

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Solution

The fourth proportional to 80,818.11, 111,587.90 and 58,199.67 is: 80,357.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,818.11 : 111,587.90 = 58,199.67 : x
  2. Step 2: Convert to fraction form
    80,818.11/111,587.90 = 58,199.67/x
  3. Step 3: Cross multiply
    80,818.11x = 111,587.90 × 58,199.67
  4. Step 4: Simplify right side
    80,818.11x = 6,494,378,664.99
  5. Step 5: Solve for x
    x = 6,494,378,664.99/80,818.11
  6. Step 6: Final answer
    x = 80,357.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.