Home / 74,090.36-111,153.76-21,499.08

Finding the Fourth Proportional to 74,090.36, 111,153.76 and 21,499.08

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Solution

The fourth proportional to 74,090.36, 111,153.76 and 21,499.08 is: 32,253.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,090.36 : 111,153.76 = 21,499.08 : x
  2. Step 2: Convert to fraction form
    74,090.36/111,153.76 = 21,499.08/x
  3. Step 3: Cross multiply
    74,090.36x = 111,153.76 × 21,499.08
  4. Step 4: Simplify right side
    74,090.36x = 2,389,703,578.54
  5. Step 5: Solve for x
    x = 2,389,703,578.54/74,090.36
  6. Step 6: Final answer
    x = 32,253.91

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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.