Home / 55,078.65-76,003.31-31,205.25

Finding the Fourth Proportional to 55,078.65, 76,003.31 and 31,205.25

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Solution

The fourth proportional to 55,078.65, 76,003.31 and 31,205.25 is: 43,060.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,078.65 : 76,003.31 = 31,205.25 : x
  2. Step 2: Convert to fraction form
    55,078.65/76,003.31 = 31,205.25/x
  3. Step 3: Cross multiply
    55,078.65x = 76,003.31 × 31,205.25
  4. Step 4: Simplify right side
    55,078.65x = 2,371,702,367.39
  5. Step 5: Solve for x
    x = 2,371,702,367.39/55,078.65
  6. Step 6: Final answer
    x = 43,060.29

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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.