Home / 45,427.60-68,092.80-20,463.40

Finding the Fourth Proportional to 45,427.60, 68,092.80 and 20,463.40

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Solution

The fourth proportional to 45,427.60, 68,092.80 and 20,463.40 is: 30,673.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,427.60 : 68,092.80 = 20,463.40 : x
  2. Step 2: Convert to fraction form
    45,427.60/68,092.80 = 20,463.40/x
  3. Step 3: Cross multiply
    45,427.60x = 68,092.80 × 20,463.40
  4. Step 4: Simplify right side
    45,427.60x = 1,393,410,203.52
  5. Step 5: Solve for x
    x = 1,393,410,203.52/45,427.60
  6. Step 6: Final answer
    x = 30,673.21

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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.