Home / 66,407.04-91,634.94-39,182.40

Finding the Fourth Proportional to 66,407.04, 91,634.94 and 39,182.40

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Solution

The fourth proportional to 66,407.04, 91,634.94 and 39,182.40 is: 54,067.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,407.04 : 91,634.94 = 39,182.40 : x
  2. Step 2: Convert to fraction form
    66,407.04/91,634.94 = 39,182.40/x
  3. Step 3: Cross multiply
    66,407.04x = 91,634.94 × 39,182.40
  4. Step 4: Simplify right side
    66,407.04x = 3,590,476,873.06
  5. Step 5: Solve for x
    x = 3,590,476,873.06/66,407.04
  6. Step 6: Final answer
    x = 54,067.71

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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.