Home / 49,474.40-74,211.60-12,538.40

Finding the Fourth Proportional to 49,474.40, 74,211.60 and 12,538.40

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Solution

The fourth proportional to 49,474.40, 74,211.60 and 12,538.40 is: 18,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,474.40 : 74,211.60 = 12,538.40 : x
  2. Step 2: Convert to fraction form
    49,474.40/74,211.60 = 12,538.40/x
  3. Step 3: Cross multiply
    49,474.40x = 74,211.60 × 12,538.40
  4. Step 4: Simplify right side
    49,474.40x = 930,494,725.44
  5. Step 5: Solve for x
    x = 930,494,725.44/49,474.40
  6. Step 6: Final answer
    x = 18,807.60

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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.