Home / 86,039.97-129,142.04-52,824.91

Finding the Fourth Proportional to 86,039.97, 129,142.04 and 52,824.91

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Solution

The fourth proportional to 86,039.97, 129,142.04 and 52,824.91 is: 79,287.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,039.97 : 129,142.04 = 52,824.91 : x
  2. Step 2: Convert to fraction form
    86,039.97/129,142.04 = 52,824.91/x
  3. Step 3: Cross multiply
    86,039.97x = 129,142.04 × 52,824.91
  4. Step 4: Simplify right side
    86,039.97x = 6,821,916,640.22
  5. Step 5: Solve for x
    x = 6,821,916,640.22/86,039.97
  6. Step 6: Final answer
    x = 79,287.76

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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.