Home / 68,031.27-102,045.02-18,111.80

Finding the Fourth Proportional to 68,031.27, 102,045.02 and 18,111.80

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Solution

The fourth proportional to 68,031.27, 102,045.02 and 18,111.80 is: 27,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,031.27 : 102,045.02 = 18,111.80 : x
  2. Step 2: Convert to fraction form
    68,031.27/102,045.02 = 18,111.80/x
  3. Step 3: Cross multiply
    68,031.27x = 102,045.02 × 18,111.80
  4. Step 4: Simplify right side
    68,031.27x = 1,848,218,783.40
  5. Step 5: Solve for x
    x = 1,848,218,783.40/68,031.27
  6. Step 6: Final answer
    x = 27,167.20

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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.