Home / 80,838.04-111,467.34-55,348.60

Finding the Fourth Proportional to 80,838.04, 111,467.34 and 55,348.60

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Solution

The fourth proportional to 80,838.04, 111,467.34 and 55,348.60 is: 76,320.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,838.04 : 111,467.34 = 55,348.60 : x
  2. Step 2: Convert to fraction form
    80,838.04/111,467.34 = 55,348.60/x
  3. Step 3: Cross multiply
    80,838.04x = 111,467.34 × 55,348.60
  4. Step 4: Simplify right side
    80,838.04x = 6,169,561,214.72
  5. Step 5: Solve for x
    x = 6,169,561,214.72/80,838.04
  6. Step 6: Final answer
    x = 76,320.02

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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.