Home / 55,320.12-76,348.22-31,450.37

Finding the Fourth Proportional to 55,320.12, 76,348.22 and 31,450.37

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Solution

The fourth proportional to 55,320.12, 76,348.22 and 31,450.37 is: 43,405.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,320.12 : 76,348.22 = 31,450.37 : x
  2. Step 2: Convert to fraction form
    55,320.12/76,348.22 = 31,450.37/x
  3. Step 3: Cross multiply
    55,320.12x = 76,348.22 × 31,450.37
  4. Step 4: Simplify right side
    55,320.12x = 2,401,179,228.85
  5. Step 5: Solve for x
    x = 2,401,179,228.85/55,320.12
  6. Step 6: Final answer
    x = 43,405.17

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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.