Home / 89,228.58-123,145.73-53,418.57

Finding the Fourth Proportional to 89,228.58, 123,145.73 and 53,418.57

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Solution

The fourth proportional to 89,228.58, 123,145.73 and 53,418.57 is: 73,723.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,228.58 : 123,145.73 = 53,418.57 : x
  2. Step 2: Convert to fraction form
    89,228.58/123,145.73 = 53,418.57/x
  3. Step 3: Cross multiply
    89,228.58x = 123,145.73 × 53,418.57
  4. Step 4: Simplify right side
    89,228.58x = 6,578,268,798.21
  5. Step 5: Solve for x
    x = 6,578,268,798.21/89,228.58
  6. Step 6: Final answer
    x = 73,723.79

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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.