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Finding the Fourth Proportional to 63,168.50, 94,721.02 and 21,033.70

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Solution

The fourth proportional to 63,168.50, 94,721.02 and 21,033.70 is: 31,539.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,168.50 : 94,721.02 = 21,033.70 : x
  2. Step 2: Convert to fraction form
    63,168.50/94,721.02 = 21,033.70/x
  3. Step 3: Cross multiply
    63,168.50x = 94,721.02 × 21,033.70
  4. Step 4: Simplify right side
    63,168.50x = 1,992,333,518.37
  5. Step 5: Solve for x
    x = 1,992,333,518.37/63,168.50
  6. Step 6: Final answer
    x = 31,539.98

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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.