Home / 49,064.40-73,685.70-42,940.80

Finding the Fourth Proportional to 49,064.40, 73,685.70 and 42,940.80

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Solution

The fourth proportional to 49,064.40, 73,685.70 and 42,940.80 is: 64,489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,064.40 : 73,685.70 = 42,940.80 : x
  2. Step 2: Convert to fraction form
    49,064.40/73,685.70 = 42,940.80/x
  3. Step 3: Cross multiply
    49,064.40x = 73,685.70 × 42,940.80
  4. Step 4: Simplify right side
    49,064.40x = 3,164,122,906.56
  5. Step 5: Solve for x
    x = 3,164,122,906.56/49,064.40
  6. Step 6: Final answer
    x = 64,489.18

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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.