Home / 56,963.70-78,610.22-31,469.76

Finding the Fourth Proportional to 56,963.70, 78,610.22 and 31,469.76

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Solution

The fourth proportional to 56,963.70, 78,610.22 and 31,469.76 is: 43,428.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,963.70 : 78,610.22 = 31,469.76 : x
  2. Step 2: Convert to fraction form
    56,963.70/78,610.22 = 31,469.76/x
  3. Step 3: Cross multiply
    56,963.70x = 78,610.22 × 31,469.76
  4. Step 4: Simplify right side
    56,963.70x = 2,473,844,756.95
  5. Step 5: Solve for x
    x = 2,473,844,756.95/56,963.70
  6. Step 6: Final answer
    x = 43,428.44

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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.