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Finding the Fourth Proportional to 90,224.22, 124,509.67 and 49,940.76

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Solution

The fourth proportional to 90,224.22, 124,509.67 and 49,940.76 is: 68,918.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,224.22 : 124,509.67 = 49,940.76 : x
  2. Step 2: Convert to fraction form
    90,224.22/124,509.67 = 49,940.76/x
  3. Step 3: Cross multiply
    90,224.22x = 124,509.67 × 49,940.76
  4. Step 4: Simplify right side
    90,224.22x = 6,218,107,547.15
  5. Step 5: Solve for x
    x = 6,218,107,547.15/90,224.22
  6. Step 6: Final answer
    x = 68,918.39

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.