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Finding the Fourth Proportional to 62,662.08, 94,007.04 and 21,108

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Solution

The fourth proportional to 62,662.08, 94,007.04 and 21,108 is: 31,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,662.08 : 94,007.04 = 21,108 : x
  2. Step 2: Convert to fraction form
    62,662.08/94,007.04 = 21,108/x
  3. Step 3: Cross multiply
    62,662.08x = 94,007.04 × 21,108
  4. Step 4: Simplify right side
    62,662.08x = 1,984,300,600.32
  5. Step 5: Solve for x
    x = 1,984,300,600.32/62,662.08
  6. Step 6: Final answer
    x = 31,666.69

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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.