Home / 54,002.20-80,744.10-40,005.40

Finding the Fourth Proportional to 54,002.20, 80,744.10 and 40,005.40

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Solution

The fourth proportional to 54,002.20, 80,744.10 and 40,005.40 is: 59,816.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,002.20 : 80,744.10 = 40,005.40 : x
  2. Step 2: Convert to fraction form
    54,002.20/80,744.10 = 40,005.40/x
  3. Step 3: Cross multiply
    54,002.20x = 80,744.10 × 40,005.40
  4. Step 4: Simplify right side
    54,002.20x = 3,230,200,018.14
  5. Step 5: Solve for x
    x = 3,230,200,018.14/54,002.20
  6. Step 6: Final answer
    x = 59,816.08

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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.