Home / 85,289.66-127,889.23-26,109.44

Finding the Fourth Proportional to 85,289.66, 127,889.23 and 26,109.44

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Solution

The fourth proportional to 85,289.66, 127,889.23 and 26,109.44 is: 39,150.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,289.66 : 127,889.23 = 26,109.44 : x
  2. Step 2: Convert to fraction form
    85,289.66/127,889.23 = 26,109.44/x
  3. Step 3: Cross multiply
    85,289.66x = 127,889.23 × 26,109.44
  4. Step 4: Simplify right side
    85,289.66x = 3,339,116,001.15
  5. Step 5: Solve for x
    x = 3,339,116,001.15/85,289.66
  6. Step 6: Final answer
    x = 39,150.30

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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.