Home / 89,516.64-123,465.84-85,546.08

Finding the Fourth Proportional to 89,516.64, 123,465.84 and 85,546.08

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Solution

The fourth proportional to 89,516.64, 123,465.84 and 85,546.08 is: 117,989.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,516.64 : 123,465.84 = 85,546.08 : x
  2. Step 2: Convert to fraction form
    89,516.64/123,465.84 = 85,546.08/x
  3. Step 3: Cross multiply
    89,516.64x = 123,465.84 × 85,546.08
  4. Step 4: Simplify right side
    89,516.64x = 10,562,018,625.91
  5. Step 5: Solve for x
    x = 10,562,018,625.91/89,516.64
  6. Step 6: Final answer
    x = 117,989.44

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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.