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Finding the Fourth Proportional to 68,352.21, 102,527.70 and 21,605.10

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Solution

The fourth proportional to 68,352.21, 102,527.70 and 21,605.10 is: 32,407.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,352.21 : 102,527.70 = 21,605.10 : x
  2. Step 2: Convert to fraction form
    68,352.21/102,527.70 = 21,605.10/x
  3. Step 3: Cross multiply
    68,352.21x = 102,527.70 × 21,605.10
  4. Step 4: Simplify right side
    68,352.21x = 2,215,121,211.27
  5. Step 5: Solve for x
    x = 2,215,121,211.27/68,352.21
  6. Step 6: Final answer
    x = 32,407.46

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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.