Home / 57,722.12-79,634.04-38,871.80

Finding the Fourth Proportional to 57,722.12, 79,634.04 and 38,871.80

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Solution

The fourth proportional to 57,722.12, 79,634.04 and 38,871.80 is: 53,627.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,722.12 : 79,634.04 = 38,871.80 : x
  2. Step 2: Convert to fraction form
    57,722.12/79,634.04 = 38,871.80/x
  3. Step 3: Cross multiply
    57,722.12x = 79,634.04 × 38,871.80
  4. Step 4: Simplify right side
    57,722.12x = 3,095,518,476.07
  5. Step 5: Solve for x
    x = 3,095,518,476.07/57,722.12
  6. Step 6: Final answer
    x = 53,627.94

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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.