Home / 80,695.04-111,366.24-55,172.48

Finding the Fourth Proportional to 80,695.04, 111,366.24 and 55,172.48

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Solution

The fourth proportional to 80,695.04, 111,366.24 and 55,172.48 is: 76,142.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,695.04 : 111,366.24 = 55,172.48 : x
  2. Step 2: Convert to fraction form
    80,695.04/111,366.24 = 55,172.48/x
  3. Step 3: Cross multiply
    80,695.04x = 111,366.24 × 55,172.48
  4. Step 4: Simplify right side
    80,695.04x = 6,144,351,649.08
  5. Step 5: Solve for x
    x = 6,144,351,649.08/80,695.04
  6. Step 6: Final answer
    x = 76,142.87

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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.