Home / 82,820.68-124,165.20-36,040.75

Finding the Fourth Proportional to 82,820.68, 124,165.20 and 36,040.75

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Solution

The fourth proportional to 82,820.68, 124,165.20 and 36,040.75 is: 54,032.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,820.68 : 124,165.20 = 36,040.75 : x
  2. Step 2: Convert to fraction form
    82,820.68/124,165.20 = 36,040.75/x
  3. Step 3: Cross multiply
    82,820.68x = 124,165.20 × 36,040.75
  4. Step 4: Simplify right side
    82,820.68x = 4,475,006,931.90
  5. Step 5: Solve for x
    x = 4,475,006,931.90/82,820.68
  6. Step 6: Final answer
    x = 54,032.48

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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.