Home / 68,079.56-102,064.26-30,612.20

Finding the Fourth Proportional to 68,079.56, 102,064.26 and 30,612.20

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Solution

The fourth proportional to 68,079.56, 102,064.26 and 30,612.20 is: 45,893.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,079.56 : 102,064.26 = 30,612.20 : x
  2. Step 2: Convert to fraction form
    68,079.56/102,064.26 = 30,612.20/x
  3. Step 3: Cross multiply
    68,079.56x = 102,064.26 × 30,612.20
  4. Step 4: Simplify right side
    68,079.56x = 3,124,411,539.97
  5. Step 5: Solve for x
    x = 3,124,411,539.97/68,079.56
  6. Step 6: Final answer
    x = 45,893.53

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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.