Home / 91,116.12-136,690.32-27,934.80

Finding the Fourth Proportional to 91,116.12, 136,690.32 and 27,934.80

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Solution

The fourth proportional to 91,116.12, 136,690.32 and 27,934.80 is: 41,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,116.12 : 136,690.32 = 27,934.80 : x
  2. Step 2: Convert to fraction form
    91,116.12/136,690.32 = 27,934.80/x
  3. Step 3: Cross multiply
    91,116.12x = 136,690.32 × 27,934.80
  4. Step 4: Simplify right side
    91,116.12x = 3,818,416,751.14
  5. Step 5: Solve for x
    x = 3,818,416,751.14/91,116.12
  6. Step 6: Final answer
    x = 41,907.15

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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.