Home / 68,716.10-94,826.31-40,423.70

Finding the Fourth Proportional to 68,716.10, 94,826.31 and 40,423.70

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Solution

The fourth proportional to 68,716.10, 94,826.31 and 40,423.70 is: 55,783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,716.10 : 94,826.31 = 40,423.70 : x
  2. Step 2: Convert to fraction form
    68,716.10/94,826.31 = 40,423.70/x
  3. Step 3: Cross multiply
    68,716.10x = 94,826.31 × 40,423.70
  4. Step 4: Simplify right side
    68,716.10x = 3,833,230,307.55
  5. Step 5: Solve for x
    x = 3,833,230,307.55/68,716.10
  6. Step 6: Final answer
    x = 55,783.58

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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.