Home / 90,815.10-136,233.58-30,027.43

Finding the Fourth Proportional to 90,815.10, 136,233.58 and 30,027.43

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Solution

The fourth proportional to 90,815.10, 136,233.58 and 30,027.43 is: 45,044.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,815.10 : 136,233.58 = 30,027.43 : x
  2. Step 2: Convert to fraction form
    90,815.10/136,233.58 = 30,027.43/x
  3. Step 3: Cross multiply
    90,815.10x = 136,233.58 × 30,027.43
  4. Step 4: Simplify right side
    90,815.10x = 4,090,744,287.10
  5. Step 5: Solve for x
    x = 4,090,744,287.10/90,815.10
  6. Step 6: Final answer
    x = 45,044.76

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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.