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Finding the Fourth Proportional to 63,538.88, 95,308.34 and 21,985.88

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Solution

The fourth proportional to 63,538.88, 95,308.34 and 21,985.88 is: 32,978.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,538.88 : 95,308.34 = 21,985.88 : x
  2. Step 2: Convert to fraction form
    63,538.88/95,308.34 = 21,985.88/x
  3. Step 3: Cross multiply
    63,538.88x = 95,308.34 × 21,985.88
  4. Step 4: Simplify right side
    63,538.88x = 2,095,437,139.77
  5. Step 5: Solve for x
    x = 2,095,437,139.77/63,538.88
  6. Step 6: Final answer
    x = 32,978.82

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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.