Home / 71,865.59-99,168.08-40,033.80

Finding the Fourth Proportional to 71,865.59, 99,168.08 and 40,033.80

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Solution

The fourth proportional to 71,865.59, 99,168.08 and 40,033.80 is: 55,243.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,865.59 : 99,168.08 = 40,033.80 : x
  2. Step 2: Convert to fraction form
    71,865.59/99,168.08 = 40,033.80/x
  3. Step 3: Cross multiply
    71,865.59x = 99,168.08 × 40,033.80
  4. Step 4: Simplify right side
    71,865.59x = 3,970,074,880.94
  5. Step 5: Solve for x
    x = 3,970,074,880.94/71,865.59
  6. Step 6: Final answer
    x = 55,243.06

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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.