Home / 80,866.68-121,295.91-30,942.93

Finding the Fourth Proportional to 80,866.68, 121,295.91 and 30,942.93

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Solution

The fourth proportional to 80,866.68, 121,295.91 and 30,942.93 is: 46,412.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,866.68 : 121,295.91 = 30,942.93 : x
  2. Step 2: Convert to fraction form
    80,866.68/121,295.91 = 30,942.93/x
  3. Step 3: Cross multiply
    80,866.68x = 121,295.91 × 30,942.93
  4. Step 4: Simplify right side
    80,866.68x = 3,753,250,852.42
  5. Step 5: Solve for x
    x = 3,753,250,852.42/80,866.68
  6. Step 6: Final answer
    x = 46,412.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.