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Finding the Fourth Proportional to 44,300.30, 66,450.45 and 20,972.30

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Solution

The fourth proportional to 44,300.30, 66,450.45 and 20,972.30 is: 31,458.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,300.30 : 66,450.45 = 20,972.30 : x
  2. Step 2: Convert to fraction form
    44,300.30/66,450.45 = 20,972.30/x
  3. Step 3: Cross multiply
    44,300.30x = 66,450.45 × 20,972.30
  4. Step 4: Simplify right side
    44,300.30x = 1,393,618,772.54
  5. Step 5: Solve for x
    x = 1,393,618,772.54/44,300.30
  6. Step 6: Final answer
    x = 31,458.45

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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.