Home / 80,813.01-121,238.61-25,409.01

Finding the Fourth Proportional to 80,813.01, 121,238.61 and 25,409.01

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Solution

The fourth proportional to 80,813.01, 121,238.61 and 25,409.01 is: 38,119.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,813.01 : 121,238.61 = 25,409.01 : x
  2. Step 2: Convert to fraction form
    80,813.01/121,238.61 = 25,409.01/x
  3. Step 3: Cross multiply
    80,813.01x = 121,238.61 × 25,409.01
  4. Step 4: Simplify right side
    80,813.01x = 3,080,553,053.88
  5. Step 5: Solve for x
    x = 3,080,553,053.88/80,813.01
  6. Step 6: Final answer
    x = 38,119.52

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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.