Home / 53,865.21-80,834.70-18,804.87

Finding the Fourth Proportional to 53,865.21, 80,834.70 and 18,804.87

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Solution

The fourth proportional to 53,865.21, 80,834.70 and 18,804.87 is: 28,220.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,865.21 : 80,834.70 = 18,804.87 : x
  2. Step 2: Convert to fraction form
    53,865.21/80,834.70 = 18,804.87/x
  3. Step 3: Cross multiply
    53,865.21x = 80,834.70 × 18,804.87
  4. Step 4: Simplify right side
    53,865.21x = 1,520,086,024.99
  5. Step 5: Solve for x
    x = 1,520,086,024.99/53,865.21
  6. Step 6: Final answer
    x = 28,220.18

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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.