Home / 55,611.14-76,742.61-31,751.78

Finding the Fourth Proportional to 55,611.14, 76,742.61 and 31,751.78

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Solution

The fourth proportional to 55,611.14, 76,742.61 and 31,751.78 is: 43,817.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,611.14 : 76,742.61 = 31,751.78 : x
  2. Step 2: Convert to fraction form
    55,611.14/76,742.61 = 31,751.78/x
  3. Step 3: Cross multiply
    55,611.14x = 76,742.61 × 31,751.78
  4. Step 4: Simplify right side
    55,611.14x = 2,436,714,469.35
  5. Step 5: Solve for x
    x = 2,436,714,469.35/55,611.14
  6. Step 6: Final answer
    x = 43,817.02

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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.