Home / 80,234.62-120,347.07-21,068.98

Finding the Fourth Proportional to 80,234.62, 120,347.07 and 21,068.98

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Solution

The fourth proportional to 80,234.62, 120,347.07 and 21,068.98 is: 31,602.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,234.62 : 120,347.07 = 21,068.98 : x
  2. Step 2: Convert to fraction form
    80,234.62/120,347.07 = 21,068.98/x
  3. Step 3: Cross multiply
    80,234.62x = 120,347.07 × 21,068.98
  4. Step 4: Simplify right side
    80,234.62x = 2,535,590,010.89
  5. Step 5: Solve for x
    x = 2,535,590,010.89/80,234.62
  6. Step 6: Final answer
    x = 31,602.19

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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.