Home / 85,919.33-128,929.19-35,995.25

Finding the Fourth Proportional to 85,919.33, 128,929.19 and 35,995.25

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Solution

The fourth proportional to 85,919.33, 128,929.19 and 35,995.25 is: 54,013.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,919.33 : 128,929.19 = 35,995.25 : x
  2. Step 2: Convert to fraction form
    85,919.33/128,929.19 = 35,995.25/x
  3. Step 3: Cross multiply
    85,919.33x = 128,929.19 × 35,995.25
  4. Step 4: Simplify right side
    85,919.33x = 4,640,838,568.69
  5. Step 5: Solve for x
    x = 4,640,838,568.69/85,919.33
  6. Step 6: Final answer
    x = 54,013.90

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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.