Home / 71,814.06-107,720.96-21,894.57

Finding the Fourth Proportional to 71,814.06, 107,720.96 and 21,894.57

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Solution

The fourth proportional to 71,814.06, 107,720.96 and 21,894.57 is: 32,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,814.06 : 107,720.96 = 21,894.57 : x
  2. Step 2: Convert to fraction form
    71,814.06/107,720.96 = 21,894.57/x
  3. Step 3: Cross multiply
    71,814.06x = 107,720.96 × 21,894.57
  4. Step 4: Simplify right side
    71,814.06x = 2,358,503,989.71
  5. Step 5: Solve for x
    x = 2,358,503,989.71/71,814.06
  6. Step 6: Final answer
    x = 32,841.81

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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.