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Finding the Fourth Proportional to 50,473.80, 75,712.73 and 18,880.70

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Solution

The fourth proportional to 50,473.80, 75,712.73 and 18,880.70 is: 28,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,473.80 : 75,712.73 = 18,880.70 : x
  2. Step 2: Convert to fraction form
    50,473.80/75,712.73 = 18,880.70/x
  3. Step 3: Cross multiply
    50,473.80x = 75,712.73 × 18,880.70
  4. Step 4: Simplify right side
    50,473.80x = 1,429,508,868.34
  5. Step 5: Solve for x
    x = 1,429,508,868.34/50,473.80
  6. Step 6: Final answer
    x = 28,321.80

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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.