Home / 85,589.04-128,383.89-23,259.54

Finding the Fourth Proportional to 85,589.04, 128,383.89 and 23,259.54

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Solution

The fourth proportional to 85,589.04, 128,383.89 and 23,259.54 is: 34,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,589.04 : 128,383.89 = 23,259.54 : x
  2. Step 2: Convert to fraction form
    85,589.04/128,383.89 = 23,259.54/x
  3. Step 3: Cross multiply
    85,589.04x = 128,383.89 × 23,259.54
  4. Step 4: Simplify right side
    85,589.04x = 2,986,150,224.81
  5. Step 5: Solve for x
    x = 2,986,150,224.81/85,589.04
  6. Step 6: Final answer
    x = 34,889.40

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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.