Home / 82,011.85-122,999.30-29,421.33

Finding the Fourth Proportional to 82,011.85, 122,999.30 and 29,421.33

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Solution

The fourth proportional to 82,011.85, 122,999.30 and 29,421.33 is: 44,125.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,011.85 : 122,999.30 = 29,421.33 : x
  2. Step 2: Convert to fraction form
    82,011.85/122,999.30 = 29,421.33/x
  3. Step 3: Cross multiply
    82,011.85x = 122,999.30 × 29,421.33
  4. Step 4: Simplify right side
    82,011.85x = 3,618,802,995.07
  5. Step 5: Solve for x
    x = 3,618,802,995.07/82,011.85
  6. Step 6: Final answer
    x = 44,125.37

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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.