Home / 90,287.16-135,442.26-34,161.72

Finding the Fourth Proportional to 90,287.16, 135,442.26 and 34,161.72

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Solution

The fourth proportional to 90,287.16, 135,442.26 and 34,161.72 is: 51,246.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,287.16 : 135,442.26 = 34,161.72 : x
  2. Step 2: Convert to fraction form
    90,287.16/135,442.26 = 34,161.72/x
  3. Step 3: Cross multiply
    90,287.16x = 135,442.26 × 34,161.72
  4. Step 4: Simplify right side
    90,287.16x = 4,626,940,562.29
  5. Step 5: Solve for x
    x = 4,626,940,562.29/90,287.16
  6. Step 6: Final answer
    x = 51,246.94

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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.