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Finding the Fourth Proportional to 90,296.88, 124,610.08 and 50,009.76

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Solution

The fourth proportional to 90,296.88, 124,610.08 and 50,009.76 is: 69,013.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,296.88 : 124,610.08 = 50,009.76 : x
  2. Step 2: Convert to fraction form
    90,296.88/124,610.08 = 50,009.76/x
  3. Step 3: Cross multiply
    90,296.88x = 124,610.08 × 50,009.76
  4. Step 4: Simplify right side
    90,296.88x = 6,231,720,194.38
  5. Step 5: Solve for x
    x = 6,231,720,194.38/90,296.88
  6. Step 6: Final answer
    x = 69,013.68

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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.