Home / 71,914.40-108,001.20-69,581.60

Finding the Fourth Proportional to 71,914.40, 108,001.20 and 69,581.60

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Solution

The fourth proportional to 71,914.40, 108,001.20 and 69,581.60 is: 104,497.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,914.40 : 108,001.20 = 69,581.60 : x
  2. Step 2: Convert to fraction form
    71,914.40/108,001.20 = 69,581.60/x
  3. Step 3: Cross multiply
    71,914.40x = 108,001.20 × 69,581.60
  4. Step 4: Simplify right side
    71,914.40x = 7,514,896,297.92
  5. Step 5: Solve for x
    x = 7,514,896,297.92/71,914.40
  6. Step 6: Final answer
    x = 104,497.80

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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.