Home / 51,427.78-77,143.37-17,693.46

Finding the Fourth Proportional to 51,427.78, 77,143.37 and 17,693.46

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Solution

The fourth proportional to 51,427.78, 77,143.37 and 17,693.46 is: 26,540.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,427.78 : 77,143.37 = 17,693.46 : x
  2. Step 2: Convert to fraction form
    51,427.78/77,143.37 = 17,693.46/x
  3. Step 3: Cross multiply
    51,427.78x = 77,143.37 × 17,693.46
  4. Step 4: Simplify right side
    51,427.78x = 1,364,933,042.89
  5. Step 5: Solve for x
    x = 1,364,933,042.89/51,427.78
  6. Step 6: Final answer
    x = 26,540.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.