Home / 80,278.23-120,377.66-47,006.67

Finding the Fourth Proportional to 80,278.23, 120,377.66 and 47,006.67

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Solution

The fourth proportional to 80,278.23, 120,377.66 and 47,006.67 is: 70,486.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,278.23 : 120,377.66 = 47,006.67 : x
  2. Step 2: Convert to fraction form
    80,278.23/120,377.66 = 47,006.67/x
  3. Step 3: Cross multiply
    80,278.23x = 120,377.66 × 47,006.67
  4. Step 4: Simplify right side
    80,278.23x = 5,658,552,703.96
  5. Step 5: Solve for x
    x = 5,658,552,703.96/80,278.23
  6. Step 6: Final answer
    x = 70,486.76

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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.