Home / 48,629.07-67,120.80-31,679.82

Finding the Fourth Proportional to 48,629.07, 67,120.80 and 31,679.82

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Solution

The fourth proportional to 48,629.07, 67,120.80 and 31,679.82 is: 43,726.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,629.07 : 67,120.80 = 31,679.82 : x
  2. Step 2: Convert to fraction form
    48,629.07/67,120.80 = 31,679.82/x
  3. Step 3: Cross multiply
    48,629.07x = 67,120.80 × 31,679.82
  4. Step 4: Simplify right side
    48,629.07x = 2,126,374,862.26
  5. Step 5: Solve for x
    x = 2,126,374,862.26/48,629.07
  6. Step 6: Final answer
    x = 43,726.41

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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.