Home / 54,190.20-81,285.30-39,329.40

Finding the Fourth Proportional to 54,190.20, 81,285.30 and 39,329.40

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Solution

The fourth proportional to 54,190.20, 81,285.30 and 39,329.40 is: 58,994.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,190.20 : 81,285.30 = 39,329.40 : x
  2. Step 2: Convert to fraction form
    54,190.20/81,285.30 = 39,329.40/x
  3. Step 3: Cross multiply
    54,190.20x = 81,285.30 × 39,329.40
  4. Step 4: Simplify right side
    54,190.20x = 3,196,902,077.82
  5. Step 5: Solve for x
    x = 3,196,902,077.82/54,190.20
  6. Step 6: Final answer
    x = 58,994.10

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1.5x scale

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.