Home / 49,418.80-74,128.20-26,090.80

Finding the Fourth Proportional to 49,418.80, 74,128.20 and 26,090.80

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Solution

The fourth proportional to 49,418.80, 74,128.20 and 26,090.80 is: 39,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,418.80 : 74,128.20 = 26,090.80 : x
  2. Step 2: Convert to fraction form
    49,418.80/74,128.20 = 26,090.80/x
  3. Step 3: Cross multiply
    49,418.80x = 74,128.20 × 26,090.80
  4. Step 4: Simplify right side
    49,418.80x = 1,934,064,040.56
  5. Step 5: Solve for x
    x = 1,934,064,040.56/49,418.80
  6. Step 6: Final answer
    x = 39,136.20

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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.