Home / 71,020.01-98,007.50-39,188.89

Finding the Fourth Proportional to 71,020.01, 98,007.50 and 39,188.89

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Solution

The fourth proportional to 71,020.01, 98,007.50 and 39,188.89 is: 54,080.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,020.01 : 98,007.50 = 39,188.89 : x
  2. Step 2: Convert to fraction form
    71,020.01/98,007.50 = 39,188.89/x
  3. Step 3: Cross multiply
    71,020.01x = 98,007.50 × 39,188.89
  4. Step 4: Simplify right side
    71,020.01x = 3,840,805,136.68
  5. Step 5: Solve for x
    x = 3,840,805,136.68/71,020.01
  6. Step 6: Final answer
    x = 54,080.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.