Home / 55,388.65-76,435.35-31,514.80

Finding the Fourth Proportional to 55,388.65, 76,435.35 and 31,514.80

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Solution

The fourth proportional to 55,388.65, 76,435.35 and 31,514.80 is: 43,489.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,388.65 : 76,435.35 = 31,514.80 : x
  2. Step 2: Convert to fraction form
    55,388.65/76,435.35 = 31,514.80/x
  3. Step 3: Cross multiply
    55,388.65x = 76,435.35 × 31,514.80
  4. Step 4: Simplify right side
    55,388.65x = 2,408,844,768.18
  5. Step 5: Solve for x
    x = 2,408,844,768.18/55,388.65
  6. Step 6: Final answer
    x = 43,489.86

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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.