Home / 54,078.84-81,060.81-31,902.66

Finding the Fourth Proportional to 54,078.84, 81,060.81 and 31,902.66

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Solution

The fourth proportional to 54,078.84, 81,060.81 and 31,902.66 is: 47,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,078.84 : 81,060.81 = 31,902.66 : x
  2. Step 2: Convert to fraction form
    54,078.84/81,060.81 = 31,902.66/x
  3. Step 3: Cross multiply
    54,078.84x = 81,060.81 × 31,902.66
  4. Step 4: Simplify right side
    54,078.84x = 2,586,055,055.45
  5. Step 5: Solve for x
    x = 2,586,055,055.45/54,078.84
  6. Step 6: Final answer
    x = 47,820.10

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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.