Home / 90,983.88-136,382.28-34,810.80

Finding the Fourth Proportional to 90,983.88, 136,382.28 and 34,810.80

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Solution

The fourth proportional to 90,983.88, 136,382.28 and 34,810.80 is: 52,180.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,983.88 : 136,382.28 = 34,810.80 : x
  2. Step 2: Convert to fraction form
    90,983.88/136,382.28 = 34,810.80/x
  3. Step 3: Cross multiply
    90,983.88x = 136,382.28 × 34,810.80
  4. Step 4: Simplify right side
    90,983.88x = 4,747,576,272.62
  5. Step 5: Solve for x
    x = 4,747,576,272.62/90,983.88
  6. Step 6: Final answer
    x = 52,180.41

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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.