Home / 83,715.78-125,580.09-23,743.21

Finding the Fourth Proportional to 83,715.78, 125,580.09 and 23,743.21

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Solution

The fourth proportional to 83,715.78, 125,580.09 and 23,743.21 is: 35,616.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,715.78 : 125,580.09 = 23,743.21 : x
  2. Step 2: Convert to fraction form
    83,715.78/125,580.09 = 23,743.21/x
  3. Step 3: Cross multiply
    83,715.78x = 125,580.09 × 23,743.21
  4. Step 4: Simplify right side
    83,715.78x = 2,981,674,223.78
  5. Step 5: Solve for x
    x = 2,981,674,223.78/83,715.78
  6. Step 6: Final answer
    x = 35,616.63

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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.