Home / 331,051.50-496,578.87-81,733.50

Finding the Fourth Proportional to 331,051.50, 496,578.87 and 81,733.50

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Solution

The fourth proportional to 331,051.50, 496,578.87 and 81,733.50 is: 122,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,051.50 : 496,578.87 = 81,733.50 : x
  2. Step 2: Convert to fraction form
    331,051.50/496,578.87 = 81,733.50/x
  3. Step 3: Cross multiply
    331,051.50x = 496,578.87 × 81,733.50
  4. Step 4: Simplify right side
    331,051.50x = 40,587,129,071.15
  5. Step 5: Solve for x
    x = 40,587,129,071.15/331,051.50
  6. Step 6: Final answer
    x = 122,600.65

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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.