Home / 80,989.02-111,764.88-45,178.92

Finding the Fourth Proportional to 80,989.02, 111,764.88 and 45,178.92

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Solution

The fourth proportional to 80,989.02, 111,764.88 and 45,178.92 is: 62,346.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,989.02 : 111,764.88 = 45,178.92 : x
  2. Step 2: Convert to fraction form
    80,989.02/111,764.88 = 45,178.92/x
  3. Step 3: Cross multiply
    80,989.02x = 111,764.88 × 45,178.92
  4. Step 4: Simplify right side
    80,989.02x = 5,049,416,572.33
  5. Step 5: Solve for x
    x = 5,049,416,572.33/80,989.02
  6. Step 6: Final answer
    x = 62,346.93

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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.