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Finding the Fourth Proportional to 61,153, 91,743.26 and 21,710.12

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Solution

The fourth proportional to 61,153, 91,743.26 and 21,710.12 is: 32,570.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,153 : 91,743.26 = 21,710.12 : x
  2. Step 2: Convert to fraction form
    61,153/91,743.26 = 21,710.12/x
  3. Step 3: Cross multiply
    61,153x = 91,743.26 × 21,710.12
  4. Step 4: Simplify right side
    61,153x = 1,991,757,183.79
  5. Step 5: Solve for x
    x = 1,991,757,183.79/61,153
  6. Step 6: Final answer
    x = 32,570.06

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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.