Home / 86,017.44-128,993.26-28,301.25

Finding the Fourth Proportional to 86,017.44, 128,993.26 and 28,301.25

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Solution

The fourth proportional to 86,017.44, 128,993.26 and 28,301.25 is: 42,441.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,017.44 : 128,993.26 = 28,301.25 : x
  2. Step 2: Convert to fraction form
    86,017.44/128,993.26 = 28,301.25/x
  3. Step 3: Cross multiply
    86,017.44x = 128,993.26 × 28,301.25
  4. Step 4: Simplify right side
    86,017.44x = 3,650,670,240.02
  5. Step 5: Solve for x
    x = 3,650,670,240.02/86,017.44
  6. Step 6: Final answer
    x = 42,441.05

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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.