Home / 85,222.08-117,606.24-49,432.86

Finding the Fourth Proportional to 85,222.08, 117,606.24 and 49,432.86

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Solution

The fourth proportional to 85,222.08, 117,606.24 and 49,432.86 is: 68,217.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,222.08 : 117,606.24 = 49,432.86 : x
  2. Step 2: Convert to fraction form
    85,222.08/117,606.24 = 49,432.86/x
  3. Step 3: Cross multiply
    85,222.08x = 117,606.24 × 49,432.86
  4. Step 4: Simplify right side
    85,222.08x = 5,813,612,797.05
  5. Step 5: Solve for x
    x = 5,813,612,797.05/85,222.08
  6. Step 6: Final answer
    x = 68,217.21

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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.