Home / 53,747.55-80,653.73-18,711.81

Finding the Fourth Proportional to 53,747.55, 80,653.73 and 18,711.81

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Solution

The fourth proportional to 53,747.55, 80,653.73 and 18,711.81 is: 28,078.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,747.55 : 80,653.73 = 18,711.81 : x
  2. Step 2: Convert to fraction form
    53,747.55/80,653.73 = 18,711.81/x
  3. Step 3: Cross multiply
    53,747.55x = 80,653.73 × 18,711.81
  4. Step 4: Simplify right side
    53,747.55x = 1,509,177,177.99
  5. Step 5: Solve for x
    x = 1,509,177,177.99/53,747.55
  6. Step 6: Final answer
    x = 28,078.99

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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.