Home / 80,813.85-121,095.05-30,866.69

Finding the Fourth Proportional to 80,813.85, 121,095.05 and 30,866.69

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Solution

The fourth proportional to 80,813.85, 121,095.05 and 30,866.69 is: 46,252.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,813.85 : 121,095.05 = 30,866.69 : x
  2. Step 2: Convert to fraction form
    80,813.85/121,095.05 = 30,866.69/x
  3. Step 3: Cross multiply
    80,813.85x = 121,095.05 × 30,866.69
  4. Step 4: Simplify right side
    80,813.85x = 3,737,803,009.75
  5. Step 5: Solve for x
    x = 3,737,803,009.75/80,813.85
  6. Step 6: Final answer
    x = 46,252.01

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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.