Home / 89,920.85-124,093.78-49,087.40

Finding the Fourth Proportional to 89,920.85, 124,093.78 and 49,087.40

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Solution

The fourth proportional to 89,920.85, 124,093.78 and 49,087.40 is: 67,742.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,920.85 : 124,093.78 = 49,087.40 : x
  2. Step 2: Convert to fraction form
    89,920.85/124,093.78 = 49,087.40/x
  3. Step 3: Cross multiply
    89,920.85x = 124,093.78 × 49,087.40
  4. Step 4: Simplify right side
    89,920.85x = 6,091,440,273.18
  5. Step 5: Solve for x
    x = 6,091,440,273.18/89,920.85
  6. Step 6: Final answer
    x = 67,742.25

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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.