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Finding the Fourth Proportional to 69,971.60, 104,890.20 and 23,200.40

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Solution

The fourth proportional to 69,971.60, 104,890.20 and 23,200.40 is: 34,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,971.60 : 104,890.20 = 23,200.40 : x
  2. Step 2: Convert to fraction form
    69,971.60/104,890.20 = 23,200.40/x
  3. Step 3: Cross multiply
    69,971.60x = 104,890.20 × 23,200.40
  4. Step 4: Simplify right side
    69,971.60x = 2,433,494,596.08
  5. Step 5: Solve for x
    x = 2,433,494,596.08/69,971.60
  6. Step 6: Final answer
    x = 34,778.32

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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.