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Finding the Fourth Proportional to 50,302.60, 75,405.90 and 18,704.20

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Solution

The fourth proportional to 50,302.60, 75,405.90 and 18,704.20 is: 28,038.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,302.60 : 75,405.90 = 18,704.20 : x
  2. Step 2: Convert to fraction form
    50,302.60/75,405.90 = 18,704.20/x
  3. Step 3: Cross multiply
    50,302.60x = 75,405.90 × 18,704.20
  4. Step 4: Simplify right side
    50,302.60x = 1,410,407,034.78
  5. Step 5: Solve for x
    x = 1,410,407,034.78/50,302.60
  6. Step 6: Final answer
    x = 28,038.45

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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.