Home / 55,745.91-83,618.52-13,626.21

Finding the Fourth Proportional to 55,745.91, 83,618.52 and 13,626.21

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Solution

The fourth proportional to 55,745.91, 83,618.52 and 13,626.21 is: 20,439.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,745.91 : 83,618.52 = 13,626.21 : x
  2. Step 2: Convert to fraction form
    55,745.91/83,618.52 = 13,626.21/x
  3. Step 3: Cross multiply
    55,745.91x = 83,618.52 × 13,626.21
  4. Step 4: Simplify right side
    55,745.91x = 1,139,403,513.41
  5. Step 5: Solve for x
    x = 1,139,403,513.41/55,745.91
  6. Step 6: Final answer
    x = 20,439.23

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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.