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Finding the Fourth Proportional to 49,084.80, 73,540.80 and 42,172.80

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Solution

The fourth proportional to 49,084.80, 73,540.80 and 42,172.80 is: 63,184.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,084.80 : 73,540.80 = 42,172.80 : x
  2. Step 2: Convert to fraction form
    49,084.80/73,540.80 = 42,172.80/x
  3. Step 3: Cross multiply
    49,084.80x = 73,540.80 × 42,172.80
  4. Step 4: Simplify right side
    49,084.80x = 3,101,421,450.24
  5. Step 5: Solve for x
    x = 3,101,421,450.24/49,084.80
  6. Step 6: Final answer
    x = 63,184.97

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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.