Home / 45,431.04-68,156.27-13,843.62

Finding the Fourth Proportional to 45,431.04, 68,156.27 and 13,843.62

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Solution

The fourth proportional to 45,431.04, 68,156.27 and 13,843.62 is: 20,768.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,431.04 : 68,156.27 = 13,843.62 : x
  2. Step 2: Convert to fraction form
    45,431.04/68,156.27 = 13,843.62/x
  3. Step 3: Cross multiply
    45,431.04x = 68,156.27 × 13,843.62
  4. Step 4: Simplify right side
    45,431.04x = 943,529,740.78
  5. Step 5: Solve for x
    x = 943,529,740.78/45,431.04
  6. Step 6: Final answer
    x = 20,768.39

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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.