Home / 81,821.50-122,606.46-48,475.24

Finding the Fourth Proportional to 81,821.50, 122,606.46 and 48,475.24

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Solution

The fourth proportional to 81,821.50, 122,606.46 and 48,475.24 is: 72,638.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,821.50 : 122,606.46 = 48,475.24 : x
  2. Step 2: Convert to fraction form
    81,821.50/122,606.46 = 48,475.24/x
  3. Step 3: Cross multiply
    81,821.50x = 122,606.46 × 48,475.24
  4. Step 4: Simplify right side
    81,821.50x = 5,943,377,574.05
  5. Step 5: Solve for x
    x = 5,943,377,574.05/81,821.50
  6. Step 6: Final answer
    x = 72,638.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.