Home / 45,381.53-68,072.40-12,104.24

Finding the Fourth Proportional to 45,381.53, 68,072.40 and 12,104.24

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Solution

The fourth proportional to 45,381.53, 68,072.40 and 12,104.24 is: 18,156.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,381.53 : 68,072.40 = 12,104.24 : x
  2. Step 2: Convert to fraction form
    45,381.53/68,072.40 = 12,104.24/x
  3. Step 3: Cross multiply
    45,381.53x = 68,072.40 × 12,104.24
  4. Step 4: Simplify right side
    45,381.53x = 823,964,326.61
  5. Step 5: Solve for x
    x = 823,964,326.61/45,381.53
  6. Step 6: Final answer
    x = 18,156.38

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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.