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Finding the Fourth Proportional to 61,093.97, 91,655.29 and 18,971.87

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Solution

The fourth proportional to 61,093.97, 91,655.29 and 18,971.87 is: 28,462.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,093.97 : 91,655.29 = 18,971.87 : x
  2. Step 2: Convert to fraction form
    61,093.97/91,655.29 = 18,971.87/x
  3. Step 3: Cross multiply
    61,093.97x = 91,655.29 × 18,971.87
  4. Step 4: Simplify right side
    61,093.97x = 1,738,872,246.69
  5. Step 5: Solve for x
    x = 1,738,872,246.69/61,093.97
  6. Step 6: Final answer
    x = 28,462.26

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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.