Home / 80,762.49-121,148.19-30,846.69

Finding the Fourth Proportional to 80,762.49, 121,148.19 and 30,846.69

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Solution

The fourth proportional to 80,762.49, 121,148.19 and 30,846.69 is: 46,271.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,762.49 : 121,148.19 = 30,846.69 : x
  2. Step 2: Convert to fraction form
    80,762.49/121,148.19 = 30,846.69/x
  3. Step 3: Cross multiply
    80,762.49x = 121,148.19 × 30,846.69
  4. Step 4: Simplify right side
    80,762.49x = 3,737,020,660.99
  5. Step 5: Solve for x
    x = 3,737,020,660.99/80,762.49
  6. Step 6: Final answer
    x = 46,271.74

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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.