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Finding the Fourth Proportional to 50,757.61, 76,130.95 and 13,321.44

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Solution

The fourth proportional to 50,757.61, 76,130.95 and 13,321.44 is: 19,980.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,757.61 : 76,130.95 = 13,321.44 : x
  2. Step 2: Convert to fraction form
    50,757.61/76,130.95 = 13,321.44/x
  3. Step 3: Cross multiply
    50,757.61x = 76,130.95 × 13,321.44
  4. Step 4: Simplify right side
    50,757.61x = 1,014,173,882.57
  5. Step 5: Solve for x
    x = 1,014,173,882.57/50,757.61
  6. Step 6: Final answer
    x = 19,980.73

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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.