Home / 55,694.31-76,862.22-31,820.47

Finding the Fourth Proportional to 55,694.31, 76,862.22 and 31,820.47

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Solution

The fourth proportional to 55,694.31, 76,862.22 and 31,820.47 is: 43,914.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,694.31 : 76,862.22 = 31,820.47 : x
  2. Step 2: Convert to fraction form
    55,694.31/76,862.22 = 31,820.47/x
  3. Step 3: Cross multiply
    55,694.31x = 76,862.22 × 31,820.47
  4. Step 4: Simplify right side
    55,694.31x = 2,445,791,654.16
  5. Step 5: Solve for x
    x = 2,445,791,654.16/55,694.31
  6. Step 6: Final answer
    x = 43,914.57

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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.