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Finding the Fourth Proportional to 50,478.17, 75,669.03 and 18,879.66

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Solution

The fourth proportional to 50,478.17, 75,669.03 and 18,879.66 is: 28,301.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,478.17 : 75,669.03 = 18,879.66 : x
  2. Step 2: Convert to fraction form
    50,478.17/75,669.03 = 18,879.66/x
  3. Step 3: Cross multiply
    50,478.17x = 75,669.03 × 18,879.66
  4. Step 4: Simplify right side
    50,478.17x = 1,428,605,558.93
  5. Step 5: Solve for x
    x = 1,428,605,558.93/50,478.17
  6. Step 6: Final answer
    x = 28,301.46

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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.