Home / 66,021.54-91,109.31-35,807.58

Finding the Fourth Proportional to 66,021.54, 91,109.31 and 35,807.58

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Solution

The fourth proportional to 66,021.54, 91,109.31 and 35,807.58 is: 49,414.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,021.54 : 91,109.31 = 35,807.58 : x
  2. Step 2: Convert to fraction form
    66,021.54/91,109.31 = 35,807.58/x
  3. Step 3: Cross multiply
    66,021.54x = 91,109.31 × 35,807.58
  4. Step 4: Simplify right side
    66,021.54x = 3,262,403,906.57
  5. Step 5: Solve for x
    x = 3,262,403,906.57/66,021.54
  6. Step 6: Final answer
    x = 49,414.24

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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.