Home / 86,136.40-129,243.03-43,994.29

Finding the Fourth Proportional to 86,136.40, 129,243.03 and 43,994.29

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Solution

The fourth proportional to 86,136.40, 129,243.03 and 43,994.29 is: 66,011.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,136.40 : 129,243.03 = 43,994.29 : x
  2. Step 2: Convert to fraction form
    86,136.40/129,243.03 = 43,994.29/x
  3. Step 3: Cross multiply
    86,136.40x = 129,243.03 × 43,994.29
  4. Step 4: Simplify right side
    86,136.40x = 5,685,954,696.08
  5. Step 5: Solve for x
    x = 5,685,954,696.08/86,136.40
  6. Step 6: Final answer
    x = 66,011.06

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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.