Home / 53,772.90-80,657.52-20,491.75

Finding the Fourth Proportional to 53,772.90, 80,657.52 and 20,491.75

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Solution

The fourth proportional to 53,772.90, 80,657.52 and 20,491.75 is: 30,736.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,772.90 : 80,657.52 = 20,491.75 : x
  2. Step 2: Convert to fraction form
    53,772.90/80,657.52 = 20,491.75/x
  3. Step 3: Cross multiply
    53,772.90x = 80,657.52 × 20,491.75
  4. Step 4: Simplify right side
    53,772.90x = 1,652,813,735.46
  5. Step 5: Solve for x
    x = 1,652,813,735.46/53,772.90
  6. Step 6: Final answer
    x = 30,736.93

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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.