Home / 89,471.08-123,470.35-51,231.23

Finding the Fourth Proportional to 89,471.08, 123,470.35 and 51,231.23

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Solution

The fourth proportional to 89,471.08, 123,470.35 and 51,231.23 is: 70,699.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,471.08 : 123,470.35 = 51,231.23 : x
  2. Step 2: Convert to fraction form
    89,471.08/123,470.35 = 51,231.23/x
  3. Step 3: Cross multiply
    89,471.08x = 123,470.35 × 51,231.23
  4. Step 4: Simplify right side
    89,471.08x = 6,325,537,899.03
  5. Step 5: Solve for x
    x = 6,325,537,899.03/89,471.08
  6. Step 6: Final answer
    x = 70,699.25

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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.