Home / 71,539.48-98,722.42-39,274.04

Finding the Fourth Proportional to 71,539.48, 98,722.42 and 39,274.04

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Solution

The fourth proportional to 71,539.48, 98,722.42 and 39,274.04 is: 54,197.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,539.48 : 98,722.42 = 39,274.04 : x
  2. Step 2: Convert to fraction form
    71,539.48/98,722.42 = 39,274.04/x
  3. Step 3: Cross multiply
    71,539.48x = 98,722.42 × 39,274.04
  4. Step 4: Simplify right side
    71,539.48x = 3,877,228,271.98
  5. Step 5: Solve for x
    x = 3,877,228,271.98/71,539.48
  6. Step 6: Final answer
    x = 54,197.04

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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.