Home / 89,163.86-123,047.51-53,355.38

Finding the Fourth Proportional to 89,163.86, 123,047.51 and 53,355.38

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Solution

The fourth proportional to 89,163.86, 123,047.51 and 53,355.38 is: 73,631.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,163.86 : 123,047.51 = 53,355.38 : x
  2. Step 2: Convert to fraction form
    89,163.86/123,047.51 = 53,355.38/x
  3. Step 3: Cross multiply
    89,163.86x = 123,047.51 × 53,355.38
  4. Step 4: Simplify right side
    89,163.86x = 6,565,245,772.09
  5. Step 5: Solve for x
    x = 6,565,245,772.09/89,163.86
  6. Step 6: Final answer
    x = 73,631.25

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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.