Home / 68,430.42-94,433.85-40,135.86

Finding the Fourth Proportional to 68,430.42, 94,433.85 and 40,135.86

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Solution

The fourth proportional to 68,430.42, 94,433.85 and 40,135.86 is: 55,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,430.42 : 94,433.85 = 40,135.86 : x
  2. Step 2: Convert to fraction form
    68,430.42/94,433.85 = 40,135.86/x
  3. Step 3: Cross multiply
    68,430.42x = 94,433.85 × 40,135.86
  4. Step 4: Simplify right side
    68,430.42x = 3,790,183,782.86
  5. Step 5: Solve for x
    x = 3,790,183,782.86/68,430.42
  6. Step 6: Final answer
    x = 55,387.41

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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.