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Finding the Fourth Proportional to 50,309.76, 75,480.44 and 20,741.52

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Solution

The fourth proportional to 50,309.76, 75,480.44 and 20,741.52 is: 31,118.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,309.76 : 75,480.44 = 20,741.52 : x
  2. Step 2: Convert to fraction form
    50,309.76/75,480.44 = 20,741.52/x
  3. Step 3: Cross multiply
    50,309.76x = 75,480.44 × 20,741.52
  4. Step 4: Simplify right side
    50,309.76x = 1,565,578,952.16
  5. Step 5: Solve for x
    x = 1,565,578,952.16/50,309.76
  6. Step 6: Final answer
    x = 31,118.79

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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.