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Finding the Fourth Proportional to 63,326.72, 94,999.80 and 21,764

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Solution

The fourth proportional to 63,326.72, 94,999.80 and 21,764 is: 32,649.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,326.72 : 94,999.80 = 21,764 : x
  2. Step 2: Convert to fraction form
    63,326.72/94,999.80 = 21,764/x
  3. Step 3: Cross multiply
    63,326.72x = 94,999.80 × 21,764
  4. Step 4: Simplify right side
    63,326.72x = 2,067,575,647.20
  5. Step 5: Solve for x
    x = 2,067,575,647.20/63,326.72
  6. Step 6: Final answer
    x = 32,649.34

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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.