Home / 49,074.40-73,611.60-12,138.40

Finding the Fourth Proportional to 49,074.40, 73,611.60 and 12,138.40

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Solution

The fourth proportional to 49,074.40, 73,611.60 and 12,138.40 is: 18,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,074.40 : 73,611.60 = 12,138.40 : x
  2. Step 2: Convert to fraction form
    49,074.40/73,611.60 = 12,138.40/x
  3. Step 3: Cross multiply
    49,074.40x = 73,611.60 × 12,138.40
  4. Step 4: Simplify right side
    49,074.40x = 893,527,045.44
  5. Step 5: Solve for x
    x = 893,527,045.44/49,074.40
  6. Step 6: Final answer
    x = 18,207.60

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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.