Home / 68,221.43-102,343.08-28,784.35

Finding the Fourth Proportional to 68,221.43, 102,343.08 and 28,784.35

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Solution

The fourth proportional to 68,221.43, 102,343.08 and 28,784.35 is: 43,181.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,221.43 : 102,343.08 = 28,784.35 : x
  2. Step 2: Convert to fraction form
    68,221.43/102,343.08 = 28,784.35/x
  3. Step 3: Cross multiply
    68,221.43x = 102,343.08 × 28,784.35
  4. Step 4: Simplify right side
    68,221.43x = 2,945,878,379.16
  5. Step 5: Solve for x
    x = 2,945,878,379.16/68,221.43
  6. Step 6: Final answer
    x = 43,181.13

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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.