Home / 52,340.33-78,464.54-20,772.67

Finding the Fourth Proportional to 52,340.33, 78,464.54 and 20,772.67

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Solution

The fourth proportional to 52,340.33, 78,464.54 and 20,772.67 is: 31,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,340.33 : 78,464.54 = 20,772.67 : x
  2. Step 2: Convert to fraction form
    52,340.33/78,464.54 = 20,772.67/x
  3. Step 3: Cross multiply
    52,340.33x = 78,464.54 × 20,772.67
  4. Step 4: Simplify right side
    52,340.33x = 1,629,917,996.12
  5. Step 5: Solve for x
    x = 1,629,917,996.12/52,340.33
  6. Step 6: Final answer
    x = 31,140.77

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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.