Home / 58,721.97-88,079.82-20,768.61

Finding the Fourth Proportional to 58,721.97, 88,079.82 and 20,768.61

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Solution

The fourth proportional to 58,721.97, 88,079.82 and 20,768.61 is: 31,151.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,721.97 : 88,079.82 = 20,768.61 : x
  2. Step 2: Convert to fraction form
    58,721.97/88,079.82 = 20,768.61/x
  3. Step 3: Cross multiply
    58,721.97x = 88,079.82 × 20,768.61
  4. Step 4: Simplify right side
    58,721.97x = 1,829,295,430.45
  5. Step 5: Solve for x
    x = 1,829,295,430.45/58,721.97
  6. Step 6: Final answer
    x = 31,151.81

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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.