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Finding the Fourth Proportional to 66,034.85, 99,064.60 and 21,674.30

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Solution

The fourth proportional to 66,034.85, 99,064.60 and 21,674.30 is: 32,515.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,034.85 : 99,064.60 = 21,674.30 : x
  2. Step 2: Convert to fraction form
    66,034.85/99,064.60 = 21,674.30/x
  3. Step 3: Cross multiply
    66,034.85x = 99,064.60 × 21,674.30
  4. Step 4: Simplify right side
    66,034.85x = 2,147,155,310.27
  5. Step 5: Solve for x
    x = 2,147,155,310.27/66,034.85
  6. Step 6: Final answer
    x = 32,515.49

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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.