Home / 80,234.18-110,688.31-48,385.38

Finding the Fourth Proportional to 80,234.18, 110,688.31 and 48,385.38

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Solution

The fourth proportional to 80,234.18, 110,688.31 and 48,385.38 is: 66,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,234.18 : 110,688.31 = 48,385.38 : x
  2. Step 2: Convert to fraction form
    80,234.18/110,688.31 = 48,385.38/x
  3. Step 3: Cross multiply
    80,234.18x = 110,688.31 × 48,385.38
  4. Step 4: Simplify right side
    80,234.18x = 5,355,695,940.91
  5. Step 5: Solve for x
    x = 5,355,695,940.91/80,234.18
  6. Step 6: Final answer
    x = 66,750.80

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1.5x scale

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.