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Finding the Fourth Proportional to 50,558.52, 75,781.26 and 18,938.16

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Solution

The fourth proportional to 50,558.52, 75,781.26 and 18,938.16 is: 28,386.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,558.52 : 75,781.26 = 18,938.16 : x
  2. Step 2: Convert to fraction form
    50,558.52/75,781.26 = 18,938.16/x
  3. Step 3: Cross multiply
    50,558.52x = 75,781.26 × 18,938.16
  4. Step 4: Simplify right side
    50,558.52x = 1,435,157,626.88
  5. Step 5: Solve for x
    x = 1,435,157,626.88/50,558.52
  6. Step 6: Final answer
    x = 28,386.07

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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.