Home / 55,235.40-76,226.76-31,361.28

Finding the Fourth Proportional to 55,235.40, 76,226.76 and 31,361.28

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Solution

The fourth proportional to 55,235.40, 76,226.76 and 31,361.28 is: 43,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,235.40 : 76,226.76 = 31,361.28 : x
  2. Step 2: Convert to fraction form
    55,235.40/76,226.76 = 31,361.28/x
  3. Step 3: Cross multiply
    55,235.40x = 76,226.76 × 31,361.28
  4. Step 4: Simplify right side
    55,235.40x = 2,390,568,763.85
  5. Step 5: Solve for x
    x = 2,390,568,763.85/55,235.40
  6. Step 6: Final answer
    x = 43,279.65

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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.