Home / 61,365.09-84,684.87-40,144.36

Finding the Fourth Proportional to 61,365.09, 84,684.87 and 40,144.36

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Solution

The fourth proportional to 61,365.09, 84,684.87 and 40,144.36 is: 55,399.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,365.09 : 84,684.87 = 40,144.36 : x
  2. Step 2: Convert to fraction form
    61,365.09/84,684.87 = 40,144.36/x
  3. Step 3: Cross multiply
    61,365.09x = 84,684.87 × 40,144.36
  4. Step 4: Simplify right side
    61,365.09x = 3,399,619,742.00
  5. Step 5: Solve for x
    x = 3,399,619,742.00/61,365.09
  6. Step 6: Final answer
    x = 55,399.89

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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.