Home / 85,205.36-127,807.32-22,020.05

Finding the Fourth Proportional to 85,205.36, 127,807.32 and 22,020.05

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Solution

The fourth proportional to 85,205.36, 127,807.32 and 22,020.05 is: 33,029.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,205.36 : 127,807.32 = 22,020.05 : x
  2. Step 2: Convert to fraction form
    85,205.36/127,807.32 = 22,020.05/x
  3. Step 3: Cross multiply
    85,205.36x = 127,807.32 × 22,020.05
  4. Step 4: Simplify right side
    85,205.36x = 2,814,323,576.77
  5. Step 5: Solve for x
    x = 2,814,323,576.77/85,205.36
  6. Step 6: Final answer
    x = 33,029.89

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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.