Home / 74,668.89-111,985.65-21,359.23

Finding the Fourth Proportional to 74,668.89, 111,985.65 and 21,359.23

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Solution

The fourth proportional to 74,668.89, 111,985.65 and 21,359.23 is: 32,033.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,668.89 : 111,985.65 = 21,359.23 : x
  2. Step 2: Convert to fraction form
    74,668.89/111,985.65 = 21,359.23/x
  3. Step 3: Cross multiply
    74,668.89x = 111,985.65 × 21,359.23
  4. Step 4: Simplify right side
    74,668.89x = 2,391,926,975.09
  5. Step 5: Solve for x
    x = 2,391,926,975.09/74,668.89
  6. Step 6: Final answer
    x = 32,033.78

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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.