Home / 49,424.40-74,136.60-48,128.40

Finding the Fourth Proportional to 49,424.40, 74,136.60 and 48,128.40

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Solution

The fourth proportional to 49,424.40, 74,136.60 and 48,128.40 is: 72,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,424.40 : 74,136.60 = 48,128.40 : x
  2. Step 2: Convert to fraction form
    49,424.40/74,136.60 = 48,128.40/x
  3. Step 3: Cross multiply
    49,424.40x = 74,136.60 × 48,128.40
  4. Step 4: Simplify right side
    49,424.40x = 3,568,075,939.44
  5. Step 5: Solve for x
    x = 3,568,075,939.44/49,424.40
  6. Step 6: Final answer
    x = 72,192.60

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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.