Home / 90,976.37-125,546.56-50,689.40

Finding the Fourth Proportional to 90,976.37, 125,546.56 and 50,689.40

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Solution

The fourth proportional to 90,976.37, 125,546.56 and 50,689.40 is: 69,950.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,976.37 : 125,546.56 = 50,689.40 : x
  2. Step 2: Convert to fraction form
    90,976.37/125,546.56 = 50,689.40/x
  3. Step 3: Cross multiply
    90,976.37x = 125,546.56 × 50,689.40
  4. Step 4: Simplify right side
    90,976.37x = 6,363,879,044.01
  5. Step 5: Solve for x
    x = 6,363,879,044.01/90,976.37
  6. Step 6: Final answer
    x = 69,950.90

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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.