Home / 90,860.94-136,292.04-31,696.38

Finding the Fourth Proportional to 90,860.94, 136,292.04 and 31,696.38

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Solution

The fourth proportional to 90,860.94, 136,292.04 and 31,696.38 is: 47,544.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,860.94 : 136,292.04 = 31,696.38 : x
  2. Step 2: Convert to fraction form
    90,860.94/136,292.04 = 31,696.38/x
  3. Step 3: Cross multiply
    90,860.94x = 136,292.04 × 31,696.38
  4. Step 4: Simplify right side
    90,860.94x = 4,319,964,290.82
  5. Step 5: Solve for x
    x = 4,319,964,290.82/90,860.94
  6. Step 6: Final answer
    x = 47,544.79

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1.5x scale

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.