Home / 80,870.44-111,599.70-45,059.68

Finding the Fourth Proportional to 80,870.44, 111,599.70 and 45,059.68

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Solution

The fourth proportional to 80,870.44, 111,599.70 and 45,059.68 is: 62,181.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,870.44 : 111,599.70 = 45,059.68 : x
  2. Step 2: Convert to fraction form
    80,870.44/111,599.70 = 45,059.68/x
  3. Step 3: Cross multiply
    80,870.44x = 111,599.70 × 45,059.68
  4. Step 4: Simplify right side
    80,870.44x = 5,028,646,770.10
  5. Step 5: Solve for x
    x = 5,028,646,770.10/80,870.44
  6. Step 6: Final answer
    x = 62,181.52

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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.