Home / 81,218.15-121,838.67-25,062.83

Finding the Fourth Proportional to 81,218.15, 121,838.67 and 25,062.83

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Solution

The fourth proportional to 81,218.15, 121,838.67 and 25,062.83 is: 37,597.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,218.15 : 121,838.67 = 25,062.83 : x
  2. Step 2: Convert to fraction form
    81,218.15/121,838.67 = 25,062.83/x
  3. Step 3: Cross multiply
    81,218.15x = 121,838.67 × 25,062.83
  4. Step 4: Simplify right side
    81,218.15x = 3,053,621,264.44
  5. Step 5: Solve for x
    x = 3,053,621,264.44/81,218.15
  6. Step 6: Final answer
    x = 37,597.77

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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.