Home / 74,010.38-102,136.75-40,476.38

Finding the Fourth Proportional to 74,010.38, 102,136.75 and 40,476.38

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Solution

The fourth proportional to 74,010.38, 102,136.75 and 40,476.38 is: 55,858.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,010.38 : 102,136.75 = 40,476.38 : x
  2. Step 2: Convert to fraction form
    74,010.38/102,136.75 = 40,476.38/x
  3. Step 3: Cross multiply
    74,010.38x = 102,136.75 × 40,476.38
  4. Step 4: Simplify right side
    74,010.38x = 4,134,125,293.09
  5. Step 5: Solve for x
    x = 4,134,125,293.09/74,010.38
  6. Step 6: Final answer
    x = 55,858.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.