Home / 90,817.58-136,231.49-27,639.77

Finding the Fourth Proportional to 90,817.58, 136,231.49 and 27,639.77

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Solution

The fourth proportional to 90,817.58, 136,231.49 and 27,639.77 is: 41,461.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,817.58 : 136,231.49 = 27,639.77 : x
  2. Step 2: Convert to fraction form
    90,817.58/136,231.49 = 27,639.77/x
  3. Step 3: Cross multiply
    90,817.58x = 136,231.49 × 27,639.77
  4. Step 4: Simplify right side
    90,817.58x = 3,765,406,231.00
  5. Step 5: Solve for x
    x = 3,765,406,231.00/90,817.58
  6. Step 6: Final answer
    x = 41,461.21

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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.