Home / 90,833.81-136,234.51-27,638.62

Finding the Fourth Proportional to 90,833.81, 136,234.51 and 27,638.62

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Solution

The fourth proportional to 90,833.81, 136,234.51 and 27,638.62 is: 41,453.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,833.81 : 136,234.51 = 27,638.62 : x
  2. Step 2: Convert to fraction form
    90,833.81/136,234.51 = 27,638.62/x
  3. Step 3: Cross multiply
    90,833.81x = 136,234.51 × 27,638.62
  4. Step 4: Simplify right side
    90,833.81x = 3,765,333,443.09
  5. Step 5: Solve for x
    x = 3,765,333,443.09/90,833.81
  6. Step 6: Final answer
    x = 41,453.00

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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.