Home / 89,825.24-123,968.08-57,142.32

Finding the Fourth Proportional to 89,825.24, 123,968.08 and 57,142.32

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Solution

The fourth proportional to 89,825.24, 123,968.08 and 57,142.32 is: 78,862.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,825.24 : 123,968.08 = 57,142.32 : x
  2. Step 2: Convert to fraction form
    89,825.24/123,968.08 = 57,142.32/x
  3. Step 3: Cross multiply
    89,825.24x = 123,968.08 × 57,142.32
  4. Step 4: Simplify right side
    89,825.24x = 7,083,823,697.15
  5. Step 5: Solve for x
    x = 7,083,823,697.15/89,825.24
  6. Step 6: Final answer
    x = 78,862.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.