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Finding the Fourth Proportional to 45,635.80, 68,453.70 and 43,886.20

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Solution

The fourth proportional to 45,635.80, 68,453.70 and 43,886.20 is: 65,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,635.80 : 68,453.70 = 43,886.20 : x
  2. Step 2: Convert to fraction form
    45,635.80/68,453.70 = 43,886.20/x
  3. Step 3: Cross multiply
    45,635.80x = 68,453.70 × 43,886.20
  4. Step 4: Simplify right side
    45,635.80x = 3,004,172,768.94
  5. Step 5: Solve for x
    x = 3,004,172,768.94/45,635.80
  6. Step 6: Final answer
    x = 65,829.30

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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.