Home / 89,172.61-123,054.33-53,382.35

Finding the Fourth Proportional to 89,172.61, 123,054.33 and 53,382.35

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Solution

The fourth proportional to 89,172.61, 123,054.33 and 53,382.35 is: 73,665.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,172.61 : 123,054.33 = 53,382.35 : x
  2. Step 2: Convert to fraction form
    89,172.61/123,054.33 = 53,382.35/x
  3. Step 3: Cross multiply
    89,172.61x = 123,054.33 × 53,382.35
  4. Step 4: Simplify right side
    89,172.61x = 6,568,929,618.60
  5. Step 5: Solve for x
    x = 6,568,929,618.60/89,172.61
  6. Step 6: Final answer
    x = 73,665.33

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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.