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Finding the Fourth Proportional to 74,170.46, 111,279.46 and 21,583.10

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Solution

The fourth proportional to 74,170.46, 111,279.46 and 21,583.10 is: 32,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,170.46 : 111,279.46 = 21,583.10 : x
  2. Step 2: Convert to fraction form
    74,170.46/111,279.46 = 21,583.10/x
  3. Step 3: Cross multiply
    74,170.46x = 111,279.46 × 21,583.10
  4. Step 4: Simplify right side
    74,170.46x = 2,401,755,713.13
  5. Step 5: Solve for x
    x = 2,401,755,713.13/74,170.46
  6. Step 6: Final answer
    x = 32,381.57

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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.