Home / 66,915.90-100,439.46-50,972.67

Finding the Fourth Proportional to 66,915.90, 100,439.46 and 50,972.67

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Solution

The fourth proportional to 66,915.90, 100,439.46 and 50,972.67 is: 76,508.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,915.90 : 100,439.46 = 50,972.67 : x
  2. Step 2: Convert to fraction form
    66,915.90/100,439.46 = 50,972.67/x
  3. Step 3: Cross multiply
    66,915.90x = 100,439.46 × 50,972.67
  4. Step 4: Simplify right side
    66,915.90x = 5,119,667,449.56
  5. Step 5: Solve for x
    x = 5,119,667,449.56/66,915.90
  6. Step 6: Final answer
    x = 76,508.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.