Home / 55,185.26-76,153.40-31,311.42

Finding the Fourth Proportional to 55,185.26, 76,153.40 and 31,311.42

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Solution

The fourth proportional to 55,185.26, 76,153.40 and 31,311.42 is: 43,208.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,185.26 : 76,153.40 = 31,311.42 : x
  2. Step 2: Convert to fraction form
    55,185.26/76,153.40 = 31,311.42/x
  3. Step 3: Cross multiply
    55,185.26x = 76,153.40 × 31,311.42
  4. Step 4: Simplify right side
    55,185.26x = 2,384,471,170.11
  5. Step 5: Solve for x
    x = 2,384,471,170.11/55,185.26
  6. Step 6: Final answer
    x = 43,208.48

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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.