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Finding the Fourth Proportional to 67,665.40, 101,522.40 and 28,234.60

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Solution

The fourth proportional to 67,665.40, 101,522.40 and 28,234.60 is: 42,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,665.40 : 101,522.40 = 28,234.60 : x
  2. Step 2: Convert to fraction form
    67,665.40/101,522.40 = 28,234.60/x
  3. Step 3: Cross multiply
    67,665.40x = 101,522.40 × 28,234.60
  4. Step 4: Simplify right side
    67,665.40x = 2,866,444,355.04
  5. Step 5: Solve for x
    x = 2,866,444,355.04/67,665.40
  6. Step 6: Final answer
    x = 42,362.04

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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.