Home / 55,633.52-76,781.40-31,754.72

Finding the Fourth Proportional to 55,633.52, 76,781.40 and 31,754.72

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Solution

The fourth proportional to 55,633.52, 76,781.40 and 31,754.72 is: 43,825.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,633.52 : 76,781.40 = 31,754.72 : x
  2. Step 2: Convert to fraction form
    55,633.52/76,781.40 = 31,754.72/x
  3. Step 3: Cross multiply
    55,633.52x = 76,781.40 × 31,754.72
  4. Step 4: Simplify right side
    55,633.52x = 2,438,171,858.21
  5. Step 5: Solve for x
    x = 2,438,171,858.21/55,633.52
  6. Step 6: Final answer
    x = 43,825.59

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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.