Home / 55,905.42-83,863.56-20,836.86

Finding the Fourth Proportional to 55,905.42, 83,863.56 and 20,836.86

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Solution

The fourth proportional to 55,905.42, 83,863.56 and 20,836.86 is: 31,257.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,905.42 : 83,863.56 = 20,836.86 : x
  2. Step 2: Convert to fraction form
    55,905.42/83,863.56 = 20,836.86/x
  3. Step 3: Cross multiply
    55,905.42x = 83,863.56 × 20,836.86
  4. Step 4: Simplify right side
    55,905.42x = 1,747,453,258.82
  5. Step 5: Solve for x
    x = 1,747,453,258.82/55,905.42
  6. Step 6: Final answer
    x = 31,257.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.