Home / 55,961.60-83,932.80-20,883.20

Finding the Fourth Proportional to 55,961.60, 83,932.80 and 20,883.20

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Solution

The fourth proportional to 55,961.60, 83,932.80 and 20,883.20 is: 31,321.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,961.60 : 83,932.80 = 20,883.20 : x
  2. Step 2: Convert to fraction form
    55,961.60/83,932.80 = 20,883.20/x
  3. Step 3: Cross multiply
    55,961.60x = 83,932.80 × 20,883.20
  4. Step 4: Simplify right side
    55,961.60x = 1,752,785,448.96
  5. Step 5: Solve for x
    x = 1,752,785,448.96/55,961.60
  6. Step 6: Final answer
    x = 31,321.22

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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.