Home / 55,238.08-76,205.82-38,480.80

Finding the Fourth Proportional to 55,238.08, 76,205.82 and 38,480.80

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Solution

The fourth proportional to 55,238.08, 76,205.82 and 38,480.80 is: 53,087.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,238.08 : 76,205.82 = 38,480.80 : x
  2. Step 2: Convert to fraction form
    55,238.08/76,205.82 = 38,480.80/x
  3. Step 3: Cross multiply
    55,238.08x = 76,205.82 × 38,480.80
  4. Step 4: Simplify right side
    55,238.08x = 2,932,460,918.26
  5. Step 5: Solve for x
    x = 2,932,460,918.26/55,238.08
  6. Step 6: Final answer
    x = 53,087.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.