Home / 49,611.69-74,416.96-12,171.40

Finding the Fourth Proportional to 49,611.69, 74,416.96 and 12,171.40

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Solution

The fourth proportional to 49,611.69, 74,416.96 and 12,171.40 is: 18,256.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,611.69 : 74,416.96 = 12,171.40 : x
  2. Step 2: Convert to fraction form
    49,611.69/74,416.96 = 12,171.40/x
  3. Step 3: Cross multiply
    49,611.69x = 74,416.96 × 12,171.40
  4. Step 4: Simplify right side
    49,611.69x = 905,758,416.12
  5. Step 5: Solve for x
    x = 905,758,416.12/49,611.69
  6. Step 6: Final answer
    x = 18,256.96

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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.