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Finding the Fourth Proportional to 74,138.63, 111,224.29 and 21,552.22

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Solution

The fourth proportional to 74,138.63, 111,224.29 and 21,552.22 is: 32,333.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,138.63 : 111,224.29 = 21,552.22 : x
  2. Step 2: Convert to fraction form
    74,138.63/111,224.29 = 21,552.22/x
  3. Step 3: Cross multiply
    74,138.63x = 111,224.29 × 21,552.22
  4. Step 4: Simplify right side
    74,138.63x = 2,397,130,035.48
  5. Step 5: Solve for x
    x = 2,397,130,035.48/74,138.63
  6. Step 6: Final answer
    x = 32,333.08

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1.5x scale

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.