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Finding the Third Proportional to 30,445.50 and 69,921

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Solution

The third proportional to 30,445.50 and 69,921 is: 160,580.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,445.50 : 69,921 = 69,921 : x
  2. Step 2: Convert to fraction form
    30,445.50/69,921 = 69,921/x
  3. Step 3: Cross multiply
    30,445.50x = 69,921 × 69,921
  4. Step 4: Simplify right side
    30,445.50x = 4,888,946,241
  5. Step 5: Solve for x
    x = 4,888,946,241/30,445.50
  6. Step 6: Final answer
    x = 160,580.26

Related Problems

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.