Home / 66,212.78-91,342.23-37,902.38

Finding the Fourth Proportional to 66,212.78, 91,342.23 and 37,902.38

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Solution

The fourth proportional to 66,212.78, 91,342.23 and 37,902.38 is: 52,287.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,212.78 : 91,342.23 = 37,902.38 : x
  2. Step 2: Convert to fraction form
    66,212.78/91,342.23 = 37,902.38/x
  3. Step 3: Cross multiply
    66,212.78x = 91,342.23 × 37,902.38
  4. Step 4: Simplify right side
    66,212.78x = 3,462,087,911.51
  5. Step 5: Solve for x
    x = 3,462,087,911.51/66,212.78
  6. Step 6: Final answer
    x = 52,287.31

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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.