Home / 86,173.13-129,380.79-44,083.40

Finding the Fourth Proportional to 86,173.13, 129,380.79 and 44,083.40

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Solution

The fourth proportional to 86,173.13, 129,380.79 and 44,083.40 is: 66,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,173.13 : 129,380.79 = 44,083.40 : x
  2. Step 2: Convert to fraction form
    86,173.13/129,380.79 = 44,083.40/x
  3. Step 3: Cross multiply
    86,173.13x = 129,380.79 × 44,083.40
  4. Step 4: Simplify right side
    86,173.13x = 5,703,545,172.99
  5. Step 5: Solve for x
    x = 5,703,545,172.99/86,173.13
  6. Step 6: Final answer
    x = 66,187.05

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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.