Home / 68,830.11-94,985.58-40,169.47

Finding the Fourth Proportional to 68,830.11, 94,985.58 and 40,169.47

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Solution

The fourth proportional to 68,830.11, 94,985.58 and 40,169.47 is: 55,433.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,830.11 : 94,985.58 = 40,169.47 : x
  2. Step 2: Convert to fraction form
    68,830.11/94,985.58 = 40,169.47/x
  3. Step 3: Cross multiply
    68,830.11x = 94,985.58 × 40,169.47
  4. Step 4: Simplify right side
    68,830.11x = 3,815,520,406.24
  5. Step 5: Solve for x
    x = 3,815,520,406.24/68,830.11
  6. Step 6: Final answer
    x = 55,433.89

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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.