Home / 55,076.12-76,004.40-30,876.97

Finding the Fourth Proportional to 55,076.12, 76,004.40 and 30,876.97

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Solution

The fourth proportional to 55,076.12, 76,004.40 and 30,876.97 is: 42,609.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,076.12 : 76,004.40 = 30,876.97 : x
  2. Step 2: Convert to fraction form
    55,076.12/76,004.40 = 30,876.97/x
  3. Step 3: Cross multiply
    55,076.12x = 76,004.40 × 30,876.97
  4. Step 4: Simplify right side
    55,076.12x = 2,346,785,292.91
  5. Step 5: Solve for x
    x = 2,346,785,292.91/55,076.12
  6. Step 6: Final answer
    x = 42,609.85

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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.