Home / 86,056.30-129,021.54-57,906.37

Finding the Fourth Proportional to 86,056.30, 129,021.54 and 57,906.37

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Solution

The fourth proportional to 86,056.30, 129,021.54 and 57,906.37 is: 86,817.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,056.30 : 129,021.54 = 57,906.37 : x
  2. Step 2: Convert to fraction form
    86,056.30/129,021.54 = 57,906.37/x
  3. Step 3: Cross multiply
    86,056.30x = 129,021.54 × 57,906.37
  4. Step 4: Simplify right side
    86,056.30x = 7,471,169,033.21
  5. Step 5: Solve for x
    x = 7,471,169,033.21/86,056.30
  6. Step 6: Final answer
    x = 86,817.22

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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.