Home / 82,025.28-122,899.68-54,239.04

Finding the Fourth Proportional to 82,025.28, 122,899.68 and 54,239.04

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Solution

The fourth proportional to 82,025.28, 122,899.68 and 54,239.04 is: 81,267.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,025.28 : 122,899.68 = 54,239.04 : x
  2. Step 2: Convert to fraction form
    82,025.28/122,899.68 = 54,239.04/x
  3. Step 3: Cross multiply
    82,025.28x = 122,899.68 × 54,239.04
  4. Step 4: Simplify right side
    82,025.28x = 6,665,960,659.51
  5. Step 5: Solve for x
    x = 6,665,960,659.51/82,025.28
  6. Step 6: Final answer
    x = 81,267.15

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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.