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Finding the Fourth Proportional to 61,325.80, 91,794.30 and 43,829.80

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Solution

The fourth proportional to 61,325.80, 91,794.30 and 43,829.80 is: 65,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,325.80 : 91,794.30 = 43,829.80 : x
  2. Step 2: Convert to fraction form
    61,325.80/91,794.30 = 43,829.80/x
  3. Step 3: Cross multiply
    61,325.80x = 91,794.30 × 43,829.80
  4. Step 4: Simplify right side
    61,325.80x = 4,023,325,810.14
  5. Step 5: Solve for x
    x = 4,023,325,810.14/61,325.80
  6. Step 6: Final answer
    x = 65,605.76

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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.