Home / 74,170.03-111,258.11-21,579.51

Finding the Fourth Proportional to 74,170.03, 111,258.11 and 21,579.51

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Solution

The fourth proportional to 74,170.03, 111,258.11 and 21,579.51 is: 32,370.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,170.03 : 111,258.11 = 21,579.51 : x
  2. Step 2: Convert to fraction form
    74,170.03/111,258.11 = 21,579.51/x
  3. Step 3: Cross multiply
    74,170.03x = 111,258.11 × 21,579.51
  4. Step 4: Simplify right side
    74,170.03x = 2,400,895,563.36
  5. Step 5: Solve for x
    x = 2,400,895,563.36/74,170.03
  6. Step 6: Final answer
    x = 32,370.16

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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.