Home / 82,011.35-122,998.55-29,420.83

Finding the Fourth Proportional to 82,011.35, 122,998.55 and 29,420.83

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Solution

The fourth proportional to 82,011.35, 122,998.55 and 29,420.83 is: 44,124.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,011.35 : 122,998.55 = 29,420.83 : x
  2. Step 2: Convert to fraction form
    82,011.35/122,998.55 = 29,420.83/x
  3. Step 3: Cross multiply
    82,011.35x = 122,998.55 × 29,420.83
  4. Step 4: Simplify right side
    82,011.35x = 3,618,719,429.80
  5. Step 5: Solve for x
    x = 3,618,719,429.80/82,011.35
  6. Step 6: Final answer
    x = 44,124.62

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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.