Home / 55,258.19-76,256.30-30,107.69

Finding the Fourth Proportional to 55,258.19, 76,256.30 and 30,107.69

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Solution

The fourth proportional to 55,258.19, 76,256.30 and 30,107.69 is: 41,548.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,258.19 : 76,256.30 = 30,107.69 : x
  2. Step 2: Convert to fraction form
    55,258.19/76,256.30 = 30,107.69/x
  3. Step 3: Cross multiply
    55,258.19x = 76,256.30 × 30,107.69
  4. Step 4: Simplify right side
    55,258.19x = 2,295,901,040.95
  5. Step 5: Solve for x
    x = 2,295,901,040.95/55,258.19
  6. Step 6: Final answer
    x = 41,548.61

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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.