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Finding the Fourth Proportional to 89,000.16, 122,819.90 and 48,164.20

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Solution

The fourth proportional to 89,000.16, 122,819.90 and 48,164.20 is: 66,466.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,000.16 : 122,819.90 = 48,164.20 : x
  2. Step 2: Convert to fraction form
    89,000.16/122,819.90 = 48,164.20/x
  3. Step 3: Cross multiply
    89,000.16x = 122,819.90 × 48,164.20
  4. Step 4: Simplify right side
    89,000.16x = 5,915,521,986.76
  5. Step 5: Solve for x
    x = 5,915,521,986.76/89,000.16
  6. Step 6: Final answer
    x = 66,466.42

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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.