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Finding the Fourth Proportional to 61,660, 92,504.58 and 20,107

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Solution

The fourth proportional to 61,660, 92,504.58 and 20,107 is: 30,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,660 : 92,504.58 = 20,107 : x
  2. Step 2: Convert to fraction form
    61,660/92,504.58 = 20,107/x
  3. Step 3: Cross multiply
    61,660x = 92,504.58 × 20,107
  4. Step 4: Simplify right side
    61,660x = 1,859,989,590.06
  5. Step 5: Solve for x
    x = 1,859,989,590.06/61,660
  6. Step 6: Final answer
    x = 30,165.25

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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.