Home / 85,553.02-128,351.43-35,616.52

Finding the Fourth Proportional to 85,553.02, 128,351.43 and 35,616.52

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Solution

The fourth proportional to 85,553.02, 128,351.43 and 35,616.52 is: 53,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,553.02 : 128,351.43 = 35,616.52 : x
  2. Step 2: Convert to fraction form
    85,553.02/128,351.43 = 35,616.52/x
  3. Step 3: Cross multiply
    85,553.02x = 128,351.43 × 35,616.52
  4. Step 4: Simplify right side
    85,553.02x = 4,571,431,273.62
  5. Step 5: Solve for x
    x = 4,571,431,273.62/85,553.02
  6. Step 6: Final answer
    x = 53,433.90

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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.