Home / 90,542.83-135,947.54-50,640.00

Finding the Fourth Proportional to 90,542.83, 135,947.54 and 50,640.00

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Solution

The fourth proportional to 90,542.83, 135,947.54 and 50,640.00 is: 76,034.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,542.83 : 135,947.54 = 50,640.00 : x
  2. Step 2: Convert to fraction form
    90,542.83/135,947.54 = 50,640.00/x
  3. Step 3: Cross multiply
    90,542.83x = 135,947.54 × 50,640.00
  4. Step 4: Simplify right side
    90,542.83x = 6,884,382,872.46
  5. Step 5: Solve for x
    x = 6,884,382,872.46/90,542.83
  6. Step 6: Final answer
    x = 76,034.54

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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.