Home / 74,175.96-111,287.70-21,588.60

Finding the Fourth Proportional to 74,175.96, 111,287.70 and 21,588.60

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Solution

The fourth proportional to 74,175.96, 111,287.70 and 21,588.60 is: 32,389.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,175.96 : 111,287.70 = 21,588.60 : x
  2. Step 2: Convert to fraction form
    74,175.96/111,287.70 = 21,588.60/x
  3. Step 3: Cross multiply
    74,175.96x = 111,287.70 × 21,588.60
  4. Step 4: Simplify right side
    74,175.96x = 2,402,545,640.22
  5. Step 5: Solve for x
    x = 2,402,545,640.22/74,175.96
  6. Step 6: Final answer
    x = 32,389.82

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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.