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Finding the Fourth Proportional to 50,338.70, 75,508.05 and 20,741.30

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Solution

The fourth proportional to 50,338.70, 75,508.05 and 20,741.30 is: 31,111.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,338.70 : 75,508.05 = 20,741.30 : x
  2. Step 2: Convert to fraction form
    50,338.70/75,508.05 = 20,741.30/x
  3. Step 3: Cross multiply
    50,338.70x = 75,508.05 × 20,741.30
  4. Step 4: Simplify right side
    50,338.70x = 1,566,135,117.47
  5. Step 5: Solve for x
    x = 1,566,135,117.47/50,338.70
  6. Step 6: Final answer
    x = 31,111.95

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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.