Home / 82,005.40-123,036.90-35,272.60

Finding the Fourth Proportional to 82,005.40, 123,036.90 and 35,272.60

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Solution

The fourth proportional to 82,005.40, 123,036.90 and 35,272.60 is: 52,921.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,005.40 : 123,036.90 = 35,272.60 : x
  2. Step 2: Convert to fraction form
    82,005.40/123,036.90 = 35,272.60/x
  3. Step 3: Cross multiply
    82,005.40x = 123,036.90 × 35,272.60
  4. Step 4: Simplify right side
    82,005.40x = 4,339,831,358.94
  5. Step 5: Solve for x
    x = 4,339,831,358.94/82,005.40
  6. Step 6: Final answer
    x = 52,921.29

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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.