Home / 54,007.10-80,901.30-30,606.20

Finding the Fourth Proportional to 54,007.10, 80,901.30 and 30,606.20

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Solution

The fourth proportional to 54,007.10, 80,901.30 and 30,606.20 is: 45,847.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,007.10 : 80,901.30 = 30,606.20 : x
  2. Step 2: Convert to fraction form
    54,007.10/80,901.30 = 30,606.20/x
  3. Step 3: Cross multiply
    54,007.10x = 80,901.30 × 30,606.20
  4. Step 4: Simplify right side
    54,007.10x = 2,476,081,368.06
  5. Step 5: Solve for x
    x = 2,476,081,368.06/54,007.10
  6. Step 6: Final answer
    x = 45,847.33

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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.