Home / 74,168.19-111,270.51-21,578.13

Finding the Fourth Proportional to 74,168.19, 111,270.51 and 21,578.13

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Solution

The fourth proportional to 74,168.19, 111,270.51 and 21,578.13 is: 32,372.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,168.19 : 111,270.51 = 21,578.13 : x
  2. Step 2: Convert to fraction form
    74,168.19/111,270.51 = 21,578.13/x
  3. Step 3: Cross multiply
    74,168.19x = 111,270.51 × 21,578.13
  4. Step 4: Simplify right side
    74,168.19x = 2,401,009,529.95
  5. Step 5: Solve for x
    x = 2,401,009,529.95/74,168.19
  6. Step 6: Final answer
    x = 32,372.50

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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.