Home / 68,031.53-102,047.16-18,111.64

Finding the Fourth Proportional to 68,031.53, 102,047.16 and 18,111.64

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Solution

The fourth proportional to 68,031.53, 102,047.16 and 18,111.64 is: 27,167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,031.53 : 102,047.16 = 18,111.64 : x
  2. Step 2: Convert to fraction form
    68,031.53/102,047.16 = 18,111.64/x
  3. Step 3: Cross multiply
    68,031.53x = 102,047.16 × 18,111.64
  4. Step 4: Simplify right side
    68,031.53x = 1,848,240,914.71
  5. Step 5: Solve for x
    x = 1,848,240,914.71/68,031.53
  6. Step 6: Final answer
    x = 27,167.42

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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.