Home / 85,289.40-127,934.10-22,109.40

Finding the Fourth Proportional to 85,289.40, 127,934.10 and 22,109.40

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Solution

The fourth proportional to 85,289.40, 127,934.10 and 22,109.40 is: 33,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,289.40 : 127,934.10 = 22,109.40 : x
  2. Step 2: Convert to fraction form
    85,289.40/127,934.10 = 22,109.40/x
  3. Step 3: Cross multiply
    85,289.40x = 127,934.10 × 22,109.40
  4. Step 4: Simplify right side
    85,289.40x = 2,828,546,190.54
  5. Step 5: Solve for x
    x = 2,828,546,190.54/85,289.40
  6. Step 6: Final answer
    x = 33,164.10

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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.