Home / 61,102.09-91,655.97-21,663.19

Finding the Fourth Proportional to 61,102.09, 91,655.97 and 21,663.19

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Solution

The fourth proportional to 61,102.09, 91,655.97 and 21,663.19 is: 32,495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,102.09 : 91,655.97 = 21,663.19 : x
  2. Step 2: Convert to fraction form
    61,102.09/91,655.97 = 21,663.19/x
  3. Step 3: Cross multiply
    61,102.09x = 91,655.97 × 21,663.19
  4. Step 4: Simplify right side
    61,102.09x = 1,985,560,463.60
  5. Step 5: Solve for x
    x = 1,985,560,463.60/61,102.09
  6. Step 6: Final answer
    x = 32,495.79

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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.