Home / 86,438.86-119,241.16-57,749.37

Finding the Fourth Proportional to 86,438.86, 119,241.16 and 57,749.37

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Solution

The fourth proportional to 86,438.86, 119,241.16 and 57,749.37 is: 79,664.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,438.86 : 119,241.16 = 57,749.37 : x
  2. Step 2: Convert to fraction form
    86,438.86/119,241.16 = 57,749.37/x
  3. Step 3: Cross multiply
    86,438.86x = 119,241.16 × 57,749.37
  4. Step 4: Simplify right side
    86,438.86x = 6,886,101,868.07
  5. Step 5: Solve for x
    x = 6,886,101,868.07/86,438.86
  6. Step 6: Final answer
    x = 79,664.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.