Home / 86,067.36-129,130.20-43,965.18

Finding the Fourth Proportional to 86,067.36, 129,130.20 and 43,965.18

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Solution

The fourth proportional to 86,067.36, 129,130.20 and 43,965.18 is: 65,962.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,067.36 : 129,130.20 = 43,965.18 : x
  2. Step 2: Convert to fraction form
    86,067.36/129,130.20 = 43,965.18/x
  3. Step 3: Cross multiply
    86,067.36x = 129,130.20 × 43,965.18
  4. Step 4: Simplify right side
    86,067.36x = 5,677,232,486.44
  5. Step 5: Solve for x
    x = 5,677,232,486.44/86,067.36
  6. Step 6: Final answer
    x = 65,962.67

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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.