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Finding the Fourth Proportional to 66,522.70, 99,816.45 and 50,722.30

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Solution

The fourth proportional to 66,522.70, 99,816.45 and 50,722.30 is: 76,108.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,522.70 : 99,816.45 = 50,722.30 : x
  2. Step 2: Convert to fraction form
    66,522.70/99,816.45 = 50,722.30/x
  3. Step 3: Cross multiply
    66,522.70x = 99,816.45 × 50,722.30
  4. Step 4: Simplify right side
    66,522.70x = 5,062,919,921.84
  5. Step 5: Solve for x
    x = 5,062,919,921.84/66,522.70
  6. Step 6: Final answer
    x = 76,108.15

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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.