Home / 90,995.10-136,496.70-31,022.70

Finding the Fourth Proportional to 90,995.10, 136,496.70 and 31,022.70

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Solution

The fourth proportional to 90,995.10, 136,496.70 and 31,022.70 is: 46,535.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,995.10 : 136,496.70 = 31,022.70 : x
  2. Step 2: Convert to fraction form
    90,995.10/136,496.70 = 31,022.70/x
  3. Step 3: Cross multiply
    90,995.10x = 136,496.70 × 31,022.70
  4. Step 4: Simplify right side
    90,995.10x = 4,234,496,175.09
  5. Step 5: Solve for x
    x = 4,234,496,175.09/90,995.10
  6. Step 6: Final answer
    x = 46,535.43

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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.