Home / 89,812.68-123,949.79-51,577.23

Finding the Fourth Proportional to 89,812.68, 123,949.79 and 51,577.23

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Solution

The fourth proportional to 89,812.68, 123,949.79 and 51,577.23 is: 71,181.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,812.68 : 123,949.79 = 51,577.23 : x
  2. Step 2: Convert to fraction form
    89,812.68/123,949.79 = 51,577.23/x
  3. Step 3: Cross multiply
    89,812.68x = 123,949.79 × 51,577.23
  4. Step 4: Simplify right side
    89,812.68x = 6,392,986,827.28
  5. Step 5: Solve for x
    x = 6,392,986,827.28/89,812.68
  6. Step 6: Final answer
    x = 71,181.34

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1.5x scale

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.