Home / 61,165.08-84,394.98-39,975.48

Finding the Fourth Proportional to 61,165.08, 84,394.98 and 39,975.48

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Solution

The fourth proportional to 61,165.08, 84,394.98 and 39,975.48 is: 55,157.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,165.08 : 84,394.98 = 39,975.48 : x
  2. Step 2: Convert to fraction form
    61,165.08/84,394.98 = 39,975.48/x
  3. Step 3: Cross multiply
    61,165.08x = 84,394.98 × 39,975.48
  4. Step 4: Simplify right side
    61,165.08x = 3,373,729,835.09
  5. Step 5: Solve for x
    x = 3,373,729,835.09/61,165.08
  6. Step 6: Final answer
    x = 55,157.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.