Home / 84,939.22-127,409.60-25,774.89

Finding the Fourth Proportional to 84,939.22, 127,409.60 and 25,774.89

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Solution

The fourth proportional to 84,939.22, 127,409.60 and 25,774.89 is: 38,662.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,939.22 : 127,409.60 = 25,774.89 : x
  2. Step 2: Convert to fraction form
    84,939.22/127,409.60 = 25,774.89/x
  3. Step 3: Cross multiply
    84,939.22x = 127,409.60 × 25,774.89
  4. Step 4: Simplify right side
    84,939.22x = 3,283,968,728.27
  5. Step 5: Solve for x
    x = 3,283,968,728.27/84,939.22
  6. Step 6: Final answer
    x = 38,662.57

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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.