Home / 68,439.75-94,446.90-38,631.75

Finding the Fourth Proportional to 68,439.75, 94,446.90 and 38,631.75

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Solution

The fourth proportional to 68,439.75, 94,446.90 and 38,631.75 is: 53,311.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,439.75 : 94,446.90 = 38,631.75 : x
  2. Step 2: Convert to fraction form
    68,439.75/94,446.90 = 38,631.75/x
  3. Step 3: Cross multiply
    68,439.75x = 94,446.90 × 38,631.75
  4. Step 4: Simplify right side
    68,439.75x = 3,648,649,029.08
  5. Step 5: Solve for x
    x = 3,648,649,029.08/68,439.75
  6. Step 6: Final answer
    x = 53,311.84

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1.5x scale

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.