Home / 89,258.32-123,186.20-57,022.60

Finding the Fourth Proportional to 89,258.32, 123,186.20 and 57,022.60

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Solution

The fourth proportional to 89,258.32, 123,186.20 and 57,022.60 is: 78,697.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,258.32 : 123,186.20 = 57,022.60 : x
  2. Step 2: Convert to fraction form
    89,258.32/123,186.20 = 57,022.60/x
  3. Step 3: Cross multiply
    89,258.32x = 123,186.20 × 57,022.60
  4. Step 4: Simplify right side
    89,258.32x = 7,024,397,408.12
  5. Step 5: Solve for x
    x = 7,024,397,408.12/89,258.32
  6. Step 6: Final answer
    x = 78,697.40

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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.