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Finding the Fourth Proportional to 50,648.09, 75,981.04 and 19,480.91

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Solution

The fourth proportional to 50,648.09, 75,981.04 and 19,480.91 is: 29,224.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,648.09 : 75,981.04 = 19,480.91 : x
  2. Step 2: Convert to fraction form
    50,648.09/75,981.04 = 19,480.91/x
  3. Step 3: Cross multiply
    50,648.09x = 75,981.04 × 19,480.91
  4. Step 4: Simplify right side
    50,648.09x = 1,480,179,373.34
  5. Step 5: Solve for x
    x = 1,480,179,373.34/50,648.09
  6. Step 6: Final answer
    x = 29,224.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.