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Finding the Fourth Proportional to 80,485.76, 111,065.28 and 44,673.68

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Solution

The fourth proportional to 80,485.76, 111,065.28 and 44,673.68 is: 61,646.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,485.76 : 111,065.28 = 44,673.68 : x
  2. Step 2: Convert to fraction form
    80,485.76/111,065.28 = 44,673.68/x
  3. Step 3: Cross multiply
    80,485.76x = 111,065.28 × 44,673.68
  4. Step 4: Simplify right side
    80,485.76x = 4,961,694,777.83
  5. Step 5: Solve for x
    x = 4,961,694,777.83/80,485.76
  6. Step 6: Final answer
    x = 61,646.86

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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.