Home / 54,708.10-82,004.55-21,415.30

Finding the Fourth Proportional to 54,708.10, 82,004.55 and 21,415.30

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Solution

The fourth proportional to 54,708.10, 82,004.55 and 21,415.30 is: 32,100.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,708.10 : 82,004.55 = 21,415.30 : x
  2. Step 2: Convert to fraction form
    54,708.10/82,004.55 = 21,415.30/x
  3. Step 3: Cross multiply
    54,708.10x = 82,004.55 × 21,415.30
  4. Step 4: Simplify right side
    54,708.10x = 1,756,152,039.62
  5. Step 5: Solve for x
    x = 1,756,152,039.62/54,708.10
  6. Step 6: Final answer
    x = 32,100.40

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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.