Home / 55,489.06-76,574.97-31,615.66

Finding the Fourth Proportional to 55,489.06, 76,574.97 and 31,615.66

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Solution

The fourth proportional to 55,489.06, 76,574.97 and 31,615.66 is: 43,629.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,489.06 : 76,574.97 = 31,615.66 : x
  2. Step 2: Convert to fraction form
    55,489.06/76,574.97 = 31,615.66/x
  3. Step 3: Cross multiply
    55,489.06x = 76,574.97 × 31,615.66
  4. Step 4: Simplify right side
    55,489.06x = 2,420,968,216.03
  5. Step 5: Solve for x
    x = 2,420,968,216.03/55,489.06
  6. Step 6: Final answer
    x = 43,629.65

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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.