Home / 90,867.15-125,396.51-50,584.43

Finding the Fourth Proportional to 90,867.15, 125,396.51 and 50,584.43

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Solution

The fourth proportional to 90,867.15, 125,396.51 and 50,584.43 is: 69,806.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,867.15 : 125,396.51 = 50,584.43 : x
  2. Step 2: Convert to fraction form
    90,867.15/125,396.51 = 50,584.43/x
  3. Step 3: Cross multiply
    90,867.15x = 125,396.51 × 50,584.43
  4. Step 4: Simplify right side
    90,867.15x = 6,343,111,042.91
  5. Step 5: Solve for x
    x = 6,343,111,042.91/90,867.15
  6. Step 6: Final answer
    x = 69,806.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.