Home / 80,611.52-111,212.88-59,441.12

Finding the Fourth Proportional to 80,611.52, 111,212.88 and 59,441.12

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Solution

The fourth proportional to 80,611.52, 111,212.88 and 59,441.12 is: 82,005.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,611.52 : 111,212.88 = 59,441.12 : x
  2. Step 2: Convert to fraction form
    80,611.52/111,212.88 = 59,441.12/x
  3. Step 3: Cross multiply
    80,611.52x = 111,212.88 × 59,441.12
  4. Step 4: Simplify right side
    80,611.52x = 6,610,618,145.63
  5. Step 5: Solve for x
    x = 6,610,618,145.63/80,611.52
  6. Step 6: Final answer
    x = 82,005.87

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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.