Home / 68,719.10-94,830.45-40,426.70

Finding the Fourth Proportional to 68,719.10, 94,830.45 and 40,426.70

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Solution

The fourth proportional to 68,719.10, 94,830.45 and 40,426.70 is: 55,787.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,719.10 : 94,830.45 = 40,426.70 : x
  2. Step 2: Convert to fraction form
    68,719.10/94,830.45 = 40,426.70/x
  3. Step 3: Cross multiply
    68,719.10x = 94,830.45 × 40,426.70
  4. Step 4: Simplify right side
    68,719.10x = 3,833,682,153.02
  5. Step 5: Solve for x
    x = 3,833,682,153.02/68,719.10
  6. Step 6: Final answer
    x = 55,787.72

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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.