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Finding the Fourth Proportional to 90,111.73, 124,348.84 and 49,822.33

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Solution

The fourth proportional to 90,111.73, 124,348.84 and 49,822.33 is: 68,751.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,111.73 : 124,348.84 = 49,822.33 : x
  2. Step 2: Convert to fraction form
    90,111.73/124,348.84 = 49,822.33/x
  3. Step 3: Cross multiply
    90,111.73x = 124,348.84 × 49,822.33
  4. Step 4: Simplify right side
    90,111.73x = 6,195,348,941.60
  5. Step 5: Solve for x
    x = 6,195,348,941.60/90,111.73
  6. Step 6: Final answer
    x = 68,751.86

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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.