Home / 84,765.16-116,981.22-48,961.72

Finding the Fourth Proportional to 84,765.16, 116,981.22 and 48,961.72

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Solution

The fourth proportional to 84,765.16, 116,981.22 and 48,961.72 is: 67,570.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,765.16 : 116,981.22 = 48,961.72 : x
  2. Step 2: Convert to fraction form
    84,765.16/116,981.22 = 48,961.72/x
  3. Step 3: Cross multiply
    84,765.16x = 116,981.22 × 48,961.72
  4. Step 4: Simplify right side
    84,765.16x = 5,727,601,738.90
  5. Step 5: Solve for x
    x = 5,727,601,738.90/84,765.16
  6. Step 6: Final answer
    x = 67,570.23

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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.