Home / 98,817.29-136,333.78-55,791.41

Finding the Fourth Proportional to 98,817.29, 136,333.78 and 55,791.41

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Solution

The fourth proportional to 98,817.29, 136,333.78 and 55,791.41 is: 76,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,817.29 : 136,333.78 = 55,791.41 : x
  2. Step 2: Convert to fraction form
    98,817.29/136,333.78 = 55,791.41/x
  3. Step 3: Cross multiply
    98,817.29x = 136,333.78 × 55,791.41
  4. Step 4: Simplify right side
    98,817.29x = 7,606,253,816.83
  5. Step 5: Solve for x
    x = 7,606,253,816.83/98,817.29
  6. Step 6: Final answer
    x = 76,972.90

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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.