Home / 89,072.65-122,920.23-48,788.92

Finding the Fourth Proportional to 89,072.65, 122,920.23 and 48,788.92

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Solution

The fourth proportional to 89,072.65, 122,920.23 and 48,788.92 is: 67,328.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,072.65 : 122,920.23 = 48,788.92 : x
  2. Step 2: Convert to fraction form
    89,072.65/122,920.23 = 48,788.92/x
  3. Step 3: Cross multiply
    89,072.65x = 122,920.23 × 48,788.92
  4. Step 4: Simplify right side
    89,072.65x = 5,997,145,267.85
  5. Step 5: Solve for x
    x = 5,997,145,267.85/89,072.65
  6. Step 6: Final answer
    x = 67,328.69

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Double scale
Find fourth proportional to 89,073.65, 122,921.61 and 48,789.92
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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.