Home / 61,186.43-91,779.65-21,745.10

Finding the Fourth Proportional to 61,186.43, 91,779.65 and 21,745.10

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Solution

The fourth proportional to 61,186.43, 91,779.65 and 21,745.10 is: 32,617.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,186.43 : 91,779.65 = 21,745.10 : x
  2. Step 2: Convert to fraction form
    61,186.43/91,779.65 = 21,745.10/x
  3. Step 3: Cross multiply
    61,186.43x = 91,779.65 × 21,745.10
  4. Step 4: Simplify right side
    61,186.43x = 1,995,757,611.35
  5. Step 5: Solve for x
    x = 1,995,757,611.35/61,186.43
  6. Step 6: Final answer
    x = 32,617.65

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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.