Home / 91,112.12-136,684.32-27,930.80

Finding the Fourth Proportional to 91,112.12, 136,684.32 and 27,930.80

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Solution

The fourth proportional to 91,112.12, 136,684.32 and 27,930.80 is: 41,901.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,112.12 : 136,684.32 = 27,930.80 : x
  2. Step 2: Convert to fraction form
    91,112.12/136,684.32 = 27,930.80/x
  3. Step 3: Cross multiply
    91,112.12x = 136,684.32 × 27,930.80
  4. Step 4: Simplify right side
    91,112.12x = 3,817,702,405.06
  5. Step 5: Solve for x
    x = 3,817,702,405.06/91,112.12
  6. Step 6: Final answer
    x = 41,901.15

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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.