Home / 55,328.97-76,348.85-31,450.98

Finding the Fourth Proportional to 55,328.97, 76,348.85 and 31,450.98

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Solution

The fourth proportional to 55,328.97, 76,348.85 and 31,450.98 is: 43,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,328.97 : 76,348.85 = 31,450.98 : x
  2. Step 2: Convert to fraction form
    55,328.97/76,348.85 = 31,450.98/x
  3. Step 3: Cross multiply
    55,328.97x = 76,348.85 × 31,450.98
  4. Step 4: Simplify right side
    55,328.97x = 2,401,245,615.37
  5. Step 5: Solve for x
    x = 2,401,245,615.37/55,328.97
  6. Step 6: Final answer
    x = 43,399.43

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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.