Home / 90,668.94-136,025.28-31,496.01

Finding the Fourth Proportional to 90,668.94, 136,025.28 and 31,496.01

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Solution

The fourth proportional to 90,668.94, 136,025.28 and 31,496.01 is: 47,251.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,668.94 : 136,025.28 = 31,496.01 : x
  2. Step 2: Convert to fraction form
    90,668.94/136,025.28 = 31,496.01/x
  3. Step 3: Cross multiply
    90,668.94x = 136,025.28 × 31,496.01
  4. Step 4: Simplify right side
    90,668.94x = 4,284,253,579.13
  5. Step 5: Solve for x
    x = 4,284,253,579.13/90,668.94
  6. Step 6: Final answer
    x = 47,251.61

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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.