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Finding the Fourth Proportional to 90,425.63, 124,788.87 and 50,141.09

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Solution

The fourth proportional to 90,425.63, 124,788.87 and 50,141.09 is: 69,195.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,425.63 : 124,788.87 = 50,141.09 : x
  2. Step 2: Convert to fraction form
    90,425.63/124,788.87 = 50,141.09/x
  3. Step 3: Cross multiply
    90,425.63x = 124,788.87 × 50,141.09
  4. Step 4: Simplify right side
    90,425.63x = 6,257,050,273.64
  5. Step 5: Solve for x
    x = 6,257,050,273.64/90,425.63
  6. Step 6: Final answer
    x = 69,195.54

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1.5x scale

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.