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Finding the Fourth Proportional to 90,019.97, 124,230.06 and 49,736.33

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Solution

The fourth proportional to 90,019.97, 124,230.06 and 49,736.33 is: 68,637.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,019.97 : 124,230.06 = 49,736.33 : x
  2. Step 2: Convert to fraction form
    90,019.97/124,230.06 = 49,736.33/x
  3. Step 3: Cross multiply
    90,019.97x = 124,230.06 × 49,736.33
  4. Step 4: Simplify right side
    90,019.97x = 6,178,746,638.93
  5. Step 5: Solve for x
    x = 6,178,746,638.93/90,019.97
  6. Step 6: Final answer
    x = 68,637.51

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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.