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Finding the Fourth Proportional to 77,477.73, 106,910.46 and 43,479.20

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Solution

The fourth proportional to 77,477.73, 106,910.46 and 43,479.20 is: 59,996.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,477.73 : 106,910.46 = 43,479.20 : x
  2. Step 2: Convert to fraction form
    77,477.73/106,910.46 = 43,479.20/x
  3. Step 3: Cross multiply
    77,477.73x = 106,910.46 × 43,479.20
  4. Step 4: Simplify right side
    77,477.73x = 4,648,380,737.88
  5. Step 5: Solve for x
    x = 4,648,380,737.88/77,477.73
  6. Step 6: Final answer
    x = 59,996.35

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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.