Home / 53,986.95-80,977.86-18,923.94

Finding the Fourth Proportional to 53,986.95, 80,977.86 and 18,923.94

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Solution

The fourth proportional to 53,986.95, 80,977.86 and 18,923.94 is: 28,385.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,986.95 : 80,977.86 = 18,923.94 : x
  2. Step 2: Convert to fraction form
    53,986.95/80,977.86 = 18,923.94/x
  3. Step 3: Cross multiply
    53,986.95x = 80,977.86 × 18,923.94
  4. Step 4: Simplify right side
    53,986.95x = 1,532,420,163.97
  5. Step 5: Solve for x
    x = 1,532,420,163.97/53,986.95
  6. Step 6: Final answer
    x = 28,385.01

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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.