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Finding the Fourth Proportional to 89,000.90, 122,820.94 and 48,164.95

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Solution

The fourth proportional to 89,000.90, 122,820.94 and 48,164.95 is: 66,467.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,000.90 : 122,820.94 = 48,164.95 : x
  2. Step 2: Convert to fraction form
    89,000.90/122,820.94 = 48,164.95/x
  3. Step 3: Cross multiply
    89,000.90x = 122,820.94 × 48,164.95
  4. Step 4: Simplify right side
    89,000.90x = 5,915,664,434.05
  5. Step 5: Solve for x
    x = 5,915,664,434.05/89,000.90
  6. Step 6: Final answer
    x = 66,467.47

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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.