Home / 49,440.38-74,160.39-12,000.42

Finding the Fourth Proportional to 49,440.38, 74,160.39 and 12,000.42

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Solution

The fourth proportional to 49,440.38, 74,160.39 and 12,000.42 is: 18,000.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,440.38 : 74,160.39 = 12,000.42 : x
  2. Step 2: Convert to fraction form
    49,440.38/74,160.39 = 12,000.42/x
  3. Step 3: Cross multiply
    49,440.38x = 74,160.39 × 12,000.42
  4. Step 4: Simplify right side
    49,440.38x = 889,955,872.37
  5. Step 5: Solve for x
    x = 889,955,872.37/49,440.38
  6. Step 6: Final answer
    x = 18,000.59

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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.