Home / 77,108.48-106,391.68-43,569.92

Finding the Fourth Proportional to 77,108.48, 106,391.68 and 43,569.92

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Solution

The fourth proportional to 77,108.48, 106,391.68 and 43,569.92 is: 60,116.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,108.48 : 106,391.68 = 43,569.92 : x
  2. Step 2: Convert to fraction form
    77,108.48/106,391.68 = 43,569.92/x
  3. Step 3: Cross multiply
    77,108.48x = 106,391.68 × 43,569.92
  4. Step 4: Simplify right side
    77,108.48x = 4,635,476,986.27
  5. Step 5: Solve for x
    x = 4,635,476,986.27/77,108.48
  6. Step 6: Final answer
    x = 60,116.31

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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.