Home / 56,185.97-77,529.61-31,990.11

Finding the Fourth Proportional to 56,185.97, 77,529.61 and 31,990.11

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Solution

The fourth proportional to 56,185.97, 77,529.61 and 31,990.11 is: 44,142.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,185.97 : 77,529.61 = 31,990.11 : x
  2. Step 2: Convert to fraction form
    56,185.97/77,529.61 = 31,990.11/x
  3. Step 3: Cross multiply
    56,185.97x = 77,529.61 × 31,990.11
  4. Step 4: Simplify right side
    56,185.97x = 2,480,180,975.62
  5. Step 5: Solve for x
    x = 2,480,180,975.62/56,185.97
  6. Step 6: Final answer
    x = 44,142.36

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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.