Home / 57,579.77-86,394.76-20,166.68

Finding the Fourth Proportional to 57,579.77, 86,394.76 and 20,166.68

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Solution

The fourth proportional to 57,579.77, 86,394.76 and 20,166.68 is: 30,258.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,579.77 : 86,394.76 = 20,166.68 : x
  2. Step 2: Convert to fraction form
    57,579.77/86,394.76 = 20,166.68/x
  3. Step 3: Cross multiply
    57,579.77x = 86,394.76 × 20,166.68
  4. Step 4: Simplify right side
    57,579.77x = 1,742,295,644.17
  5. Step 5: Solve for x
    x = 1,742,295,644.17/57,579.77
  6. Step 6: Final answer
    x = 30,258.81

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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.