Home / 85,080.10-127,615.49-25,910.81

Finding the Fourth Proportional to 85,080.10, 127,615.49 and 25,910.81

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Solution

The fourth proportional to 85,080.10, 127,615.49 and 25,910.81 is: 38,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,080.10 : 127,615.49 = 25,910.81 : x
  2. Step 2: Convert to fraction form
    85,080.10/127,615.49 = 25,910.81/x
  3. Step 3: Cross multiply
    85,080.10x = 127,615.49 × 25,910.81
  4. Step 4: Simplify right side
    85,080.10x = 3,306,620,584.89
  5. Step 5: Solve for x
    x = 3,306,620,584.89/85,080.10
  6. Step 6: Final answer
    x = 38,864.80

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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.