Home / 68,387.37-94,379.33-38,178.60

Finding the Fourth Proportional to 68,387.37, 94,379.33 and 38,178.60

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Solution

The fourth proportional to 68,387.37, 94,379.33 and 38,178.60 is: 52,689.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,387.37 : 94,379.33 = 38,178.60 : x
  2. Step 2: Convert to fraction form
    68,387.37/94,379.33 = 38,178.60/x
  3. Step 3: Cross multiply
    68,387.37x = 94,379.33 × 38,178.60
  4. Step 4: Simplify right side
    68,387.37x = 3,603,270,688.34
  5. Step 5: Solve for x
    x = 3,603,270,688.34/68,387.37
  6. Step 6: Final answer
    x = 52,689.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.