Home / 86,610.51-119,441.39-57,487.37

Finding the Fourth Proportional to 86,610.51, 119,441.39 and 57,487.37

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Solution

The fourth proportional to 86,610.51, 119,441.39 and 57,487.37 is: 79,278.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,610.51 : 119,441.39 = 57,487.37 : x
  2. Step 2: Convert to fraction form
    86,610.51/119,441.39 = 57,487.37/x
  3. Step 3: Cross multiply
    86,610.51x = 119,441.39 × 57,487.37
  4. Step 4: Simplify right side
    86,610.51x = 6,866,370,495.60
  5. Step 5: Solve for x
    x = 6,866,370,495.60/86,610.51
  6. Step 6: Final answer
    x = 79,278.72

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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.