Home / 45,389.21-68,083.46-12,111.95

Finding the Fourth Proportional to 45,389.21, 68,083.46 and 12,111.95

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Solution

The fourth proportional to 45,389.21, 68,083.46 and 12,111.95 is: 18,167.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,389.21 : 68,083.46 = 12,111.95 : x
  2. Step 2: Convert to fraction form
    45,389.21/68,083.46 = 12,111.95/x
  3. Step 3: Cross multiply
    45,389.21x = 68,083.46 × 12,111.95
  4. Step 4: Simplify right side
    45,389.21x = 824,623,463.35
  5. Step 5: Solve for x
    x = 824,623,463.35/45,389.21
  6. Step 6: Final answer
    x = 18,167.83

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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.