Home / 61,309.33-91,964.30-18,615.13

Finding the Fourth Proportional to 61,309.33, 91,964.30 and 18,615.13

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Solution

The fourth proportional to 61,309.33, 91,964.30 and 18,615.13 is: 27,922.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,309.33 : 91,964.30 = 18,615.13 : x
  2. Step 2: Convert to fraction form
    61,309.33/91,964.30 = 18,615.13/x
  3. Step 3: Cross multiply
    61,309.33x = 91,964.30 × 18,615.13
  4. Step 4: Simplify right side
    61,309.33x = 1,711,927,399.86
  5. Step 5: Solve for x
    x = 1,711,927,399.86/61,309.33
  6. Step 6: Final answer
    x = 27,922.79

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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.