Home / 55,258.20-82,887.30-31,857.30

Finding the Fourth Proportional to 55,258.20, 82,887.30 and 31,857.30

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Solution

The fourth proportional to 55,258.20, 82,887.30 and 31,857.30 is: 47,785.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,258.20 : 82,887.30 = 31,857.30 : x
  2. Step 2: Convert to fraction form
    55,258.20/82,887.30 = 31,857.30/x
  3. Step 3: Cross multiply
    55,258.20x = 82,887.30 × 31,857.30
  4. Step 4: Simplify right side
    55,258.20x = 2,640,565,582.29
  5. Step 5: Solve for x
    x = 2,640,565,582.29/55,258.20
  6. Step 6: Final answer
    x = 47,785.95

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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.