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Finding the Fourth Proportional to 51,404.88, 77,218.60 and 43,523.45

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Solution

The fourth proportional to 51,404.88, 77,218.60 and 43,523.45 is: 65,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,404.88 : 77,218.60 = 43,523.45 : x
  2. Step 2: Convert to fraction form
    51,404.88/77,218.60 = 43,523.45/x
  3. Step 3: Cross multiply
    51,404.88x = 77,218.60 × 43,523.45
  4. Step 4: Simplify right side
    51,404.88x = 3,360,819,876.17
  5. Step 5: Solve for x
    x = 3,360,819,876.17/51,404.88
  6. Step 6: Final answer
    x = 65,379.39

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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.