Home / 81,195.84-112,049.93-45,385.83

Finding the Fourth Proportional to 81,195.84, 112,049.93 and 45,385.83

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Solution

The fourth proportional to 81,195.84, 112,049.93 and 45,385.83 is: 62,632.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,195.84 : 112,049.93 = 45,385.83 : x
  2. Step 2: Convert to fraction form
    81,195.84/112,049.93 = 45,385.83/x
  3. Step 3: Cross multiply
    81,195.84x = 112,049.93 × 45,385.83
  4. Step 4: Simplify right side
    81,195.84x = 5,085,479,187.96
  5. Step 5: Solve for x
    x = 5,085,479,187.96/81,195.84
  6. Step 6: Final answer
    x = 62,632.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.