Home / 55,665.22-76,829.60-51,181.88

Finding the Fourth Proportional to 55,665.22, 76,829.60 and 51,181.88

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Solution

The fourth proportional to 55,665.22, 76,829.60 and 51,181.88 is: 70,641.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,665.22 : 76,829.60 = 51,181.88 : x
  2. Step 2: Convert to fraction form
    55,665.22/76,829.60 = 51,181.88/x
  3. Step 3: Cross multiply
    55,665.22x = 76,829.60 × 51,181.88
  4. Step 4: Simplify right side
    55,665.22x = 3,932,283,367.65
  5. Step 5: Solve for x
    x = 3,932,283,367.65/55,665.22
  6. Step 6: Final answer
    x = 70,641.66

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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.