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Finding the Fourth Proportional to 45,383.52, 68,051.88 and 20,402.22

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Solution

The fourth proportional to 45,383.52, 68,051.88 and 20,402.22 is: 30,592.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,383.52 : 68,051.88 = 20,402.22 : x
  2. Step 2: Convert to fraction form
    45,383.52/68,051.88 = 20,402.22/x
  3. Step 3: Cross multiply
    45,383.52x = 68,051.88 × 20,402.22
  4. Step 4: Simplify right side
    45,383.52x = 1,388,409,427.17
  5. Step 5: Solve for x
    x = 1,388,409,427.17/45,383.52
  6. Step 6: Final answer
    x = 30,592.81

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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.