Home / 68,094.83-102,142.98-20,717.61

Finding the Fourth Proportional to 68,094.83, 102,142.98 and 20,717.61

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Solution

The fourth proportional to 68,094.83, 102,142.98 and 20,717.61 is: 31,076.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,094.83 : 102,142.98 = 20,717.61 : x
  2. Step 2: Convert to fraction form
    68,094.83/102,142.98 = 20,717.61/x
  3. Step 3: Cross multiply
    68,094.83x = 102,142.98 × 20,717.61
  4. Step 4: Simplify right side
    68,094.83x = 2,116,158,423.88
  5. Step 5: Solve for x
    x = 2,116,158,423.88/68,094.83
  6. Step 6: Final answer
    x = 31,076.64

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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.