Home / 55,638.50-83,462.88-18,198.78

Finding the Fourth Proportional to 55,638.50, 83,462.88 and 18,198.78

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Solution

The fourth proportional to 55,638.50, 83,462.88 and 18,198.78 is: 27,299.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,638.50 : 83,462.88 = 18,198.78 : x
  2. Step 2: Convert to fraction form
    55,638.50/83,462.88 = 18,198.78/x
  3. Step 3: Cross multiply
    55,638.50x = 83,462.88 × 18,198.78
  4. Step 4: Simplify right side
    55,638.50x = 1,518,922,591.29
  5. Step 5: Solve for x
    x = 1,518,922,591.29/55,638.50
  6. Step 6: Final answer
    x = 27,299.85

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1.5x scale

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.