Home / 92,942.56-128,294.58-57,180.52

Finding the Fourth Proportional to 92,942.56, 128,294.58 and 57,180.52

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Solution

The fourth proportional to 92,942.56, 128,294.58 and 57,180.52 is: 78,929.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,942.56 : 128,294.58 = 57,180.52 : x
  2. Step 2: Convert to fraction form
    92,942.56/128,294.58 = 57,180.52/x
  3. Step 3: Cross multiply
    92,942.56x = 128,294.58 × 57,180.52
  4. Step 4: Simplify right side
    92,942.56x = 7,335,950,797.58
  5. Step 5: Solve for x
    x = 7,335,950,797.58/92,942.56
  6. Step 6: Final answer
    x = 78,929.94

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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.