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Finding the Fourth Proportional to 66,668.30, 99,414.34 and 66,068.24

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Solution

The fourth proportional to 66,668.30, 99,414.34 and 66,068.24 is: 98,519.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,668.30 : 99,414.34 = 66,068.24 : x
  2. Step 2: Convert to fraction form
    66,668.30/99,414.34 = 66,068.24/x
  3. Step 3: Cross multiply
    66,668.30x = 99,414.34 × 66,068.24
  4. Step 4: Simplify right side
    66,668.30x = 6,568,129,812.32
  5. Step 5: Solve for x
    x = 6,568,129,812.32/66,668.30
  6. Step 6: Final answer
    x = 98,519.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.