Home / 73,982.48-102,095.84-39,990.88

Finding the Fourth Proportional to 73,982.48, 102,095.84 and 39,990.88

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Solution

The fourth proportional to 73,982.48, 102,095.84 and 39,990.88 is: 55,187.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,982.48 : 102,095.84 = 39,990.88 : x
  2. Step 2: Convert to fraction form
    73,982.48/102,095.84 = 39,990.88/x
  3. Step 3: Cross multiply
    73,982.48x = 102,095.84 × 39,990.88
  4. Step 4: Simplify right side
    73,982.48x = 4,082,901,775.51
  5. Step 5: Solve for x
    x = 4,082,901,775.51/73,982.48
  6. Step 6: Final answer
    x = 55,187.41

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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.