Home / 91,109.76-136,684.44-27,930.12

Finding the Fourth Proportional to 91,109.76, 136,684.44 and 27,930.12

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Solution

The fourth proportional to 91,109.76, 136,684.44 and 27,930.12 is: 41,901.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,109.76 : 136,684.44 = 27,930.12 : x
  2. Step 2: Convert to fraction form
    91,109.76/136,684.44 = 27,930.12/x
  3. Step 3: Cross multiply
    91,109.76x = 136,684.44 × 27,930.12
  4. Step 4: Simplify right side
    91,109.76x = 3,817,612,811.33
  5. Step 5: Solve for x
    x = 3,817,612,811.33/91,109.76
  6. Step 6: Final answer
    x = 41,901.25

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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.