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Finding the Fourth Proportional to 45,490.88, 68,226.90 and 12,203.03

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Solution

The fourth proportional to 45,490.88, 68,226.90 and 12,203.03 is: 18,302.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,490.88 : 68,226.90 = 12,203.03 : x
  2. Step 2: Convert to fraction form
    45,490.88/68,226.90 = 12,203.03/x
  3. Step 3: Cross multiply
    45,490.88x = 68,226.90 × 12,203.03
  4. Step 4: Simplify right side
    45,490.88x = 832,574,566.37
  5. Step 5: Solve for x
    x = 832,574,566.37/45,490.88
  6. Step 6: Final answer
    x = 18,302.01

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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.