Home / 83,803.05-125,705.93-20,623.37

Finding the Fourth Proportional to 83,803.05, 125,705.93 and 20,623.37

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Solution

The fourth proportional to 83,803.05, 125,705.93 and 20,623.37 is: 30,935.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,803.05 : 125,705.93 = 20,623.37 : x
  2. Step 2: Convert to fraction form
    83,803.05/125,705.93 = 20,623.37/x
  3. Step 3: Cross multiply
    83,803.05x = 125,705.93 × 20,623.37
  4. Step 4: Simplify right side
    83,803.05x = 2,592,479,173.94
  5. Step 5: Solve for x
    x = 2,592,479,173.94/83,803.05
  6. Step 6: Final answer
    x = 30,935.38

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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.