Home / 51,452.21-77,170.34-19,857.66

Finding the Fourth Proportional to 51,452.21, 77,170.34 and 19,857.66

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Solution

The fourth proportional to 51,452.21, 77,170.34 and 19,857.66 is: 29,783.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,452.21 : 77,170.34 = 19,857.66 : x
  2. Step 2: Convert to fraction form
    51,452.21/77,170.34 = 19,857.66/x
  3. Step 3: Cross multiply
    51,452.21x = 77,170.34 × 19,857.66
  4. Step 4: Simplify right side
    51,452.21x = 1,532,422,423.45
  5. Step 5: Solve for x
    x = 1,532,422,423.45/51,452.21
  6. Step 6: Final answer
    x = 29,783.42

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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.