Home / 90,391.22-124,729.62-50,101.82

Finding the Fourth Proportional to 90,391.22, 124,729.62 and 50,101.82

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Solution

The fourth proportional to 90,391.22, 124,729.62 and 50,101.82 is: 69,134.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,391.22 : 124,729.62 = 50,101.82 : x
  2. Step 2: Convert to fraction form
    90,391.22/124,729.62 = 50,101.82/x
  3. Step 3: Cross multiply
    90,391.22x = 124,729.62 × 50,101.82
  4. Step 4: Simplify right side
    90,391.22x = 6,249,180,969.91
  5. Step 5: Solve for x
    x = 6,249,180,969.91/90,391.22
  6. Step 6: Final answer
    x = 69,134.82

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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.