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Finding the Fourth Proportional to 81,797.58, 112,874.51 and 45,980.60

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Solution

The fourth proportional to 81,797.58, 112,874.51 and 45,980.60 is: 63,449.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,797.58 : 112,874.51 = 45,980.60 : x
  2. Step 2: Convert to fraction form
    81,797.58/112,874.51 = 45,980.60/x
  3. Step 3: Cross multiply
    81,797.58x = 112,874.51 × 45,980.60
  4. Step 4: Simplify right side
    81,797.58x = 5,190,037,245.08
  5. Step 5: Solve for x
    x = 5,190,037,245.08/81,797.58
  6. Step 6: Final answer
    x = 63,449.77

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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.