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Finding the Fourth Proportional to 68,957.20, 103,460.10 and 66,527.20

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Solution

The fourth proportional to 68,957.20, 103,460.10 and 66,527.20 is: 99,814.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,957.20 : 103,460.10 = 66,527.20 : x
  2. Step 2: Convert to fraction form
    68,957.20/103,460.10 = 66,527.20/x
  3. Step 3: Cross multiply
    68,957.20x = 103,460.10 × 66,527.20
  4. Step 4: Simplify right side
    68,957.20x = 6,882,910,764.72
  5. Step 5: Solve for x
    x = 6,882,910,764.72/68,957.20
  6. Step 6: Final answer
    x = 99,814.24

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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.