Home / 68,119.85-102,182.34-30,672.74

Finding the Fourth Proportional to 68,119.85, 102,182.34 and 30,672.74

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Solution

The fourth proportional to 68,119.85, 102,182.34 and 30,672.74 is: 46,010.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,119.85 : 102,182.34 = 30,672.74 : x
  2. Step 2: Convert to fraction form
    68,119.85/102,182.34 = 30,672.74/x
  3. Step 3: Cross multiply
    68,119.85x = 102,182.34 × 30,672.74
  4. Step 4: Simplify right side
    68,119.85x = 3,134,212,347.41
  5. Step 5: Solve for x
    x = 3,134,212,347.41/68,119.85
  6. Step 6: Final answer
    x = 46,010.26

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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.