Home / 85,170.15-127,708.20-39,528.09

Finding the Fourth Proportional to 85,170.15, 127,708.20 and 39,528.09

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Solution

The fourth proportional to 85,170.15, 127,708.20 and 39,528.09 is: 59,270.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,170.15 : 127,708.20 = 39,528.09 : x
  2. Step 2: Convert to fraction form
    85,170.15/127,708.20 = 39,528.09/x
  3. Step 3: Cross multiply
    85,170.15x = 127,708.20 × 39,528.09
  4. Step 4: Simplify right side
    85,170.15x = 5,048,061,223.34
  5. Step 5: Solve for x
    x = 5,048,061,223.34/85,170.15
  6. Step 6: Final answer
    x = 59,270.31

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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.