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Finding the Fourth Proportional to 90,541.16, 124,941 and 50,255

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Solution

The fourth proportional to 90,541.16, 124,941 and 50,255 is: 69,348.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,541.16 : 124,941 = 50,255 : x
  2. Step 2: Convert to fraction form
    90,541.16/124,941 = 50,255/x
  3. Step 3: Cross multiply
    90,541.16x = 124,941 × 50,255
  4. Step 4: Simplify right side
    90,541.16x = 6,278,909,955
  5. Step 5: Solve for x
    x = 6,278,909,955/90,541.16
  6. Step 6: Final answer
    x = 69,348.68

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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.