Home / 85,102.40-127,653.60-22,772.90

Finding the Fourth Proportional to 85,102.40, 127,653.60 and 22,772.90

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Solution

The fourth proportional to 85,102.40, 127,653.60 and 22,772.90 is: 34,159.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,102.40 : 127,653.60 = 22,772.90 : x
  2. Step 2: Convert to fraction form
    85,102.40/127,653.60 = 22,772.90/x
  3. Step 3: Cross multiply
    85,102.40x = 127,653.60 × 22,772.90
  4. Step 4: Simplify right side
    85,102.40x = 2,907,042,667.44
  5. Step 5: Solve for x
    x = 2,907,042,667.44/85,102.40
  6. Step 6: Final answer
    x = 34,159.35

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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.