Home / 57,087.14-78,778.31-31,594.58

Finding the Fourth Proportional to 57,087.14, 78,778.31 and 31,594.58

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Solution

The fourth proportional to 57,087.14, 78,778.31 and 31,594.58 is: 43,599.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,087.14 : 78,778.31 = 31,594.58 : x
  2. Step 2: Convert to fraction form
    57,087.14/78,778.31 = 31,594.58/x
  3. Step 3: Cross multiply
    57,087.14x = 78,778.31 × 31,594.58
  4. Step 4: Simplify right side
    57,087.14x = 2,488,967,065.70
  5. Step 5: Solve for x
    x = 2,488,967,065.70/57,087.14
  6. Step 6: Final answer
    x = 43,599.44

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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.