Home / 54,084.84-81,069.81-31,908.66

Finding the Fourth Proportional to 54,084.84, 81,069.81 and 31,908.66

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Solution

The fourth proportional to 54,084.84, 81,069.81 and 31,908.66 is: 47,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,084.84 : 81,069.81 = 31,908.66 : x
  2. Step 2: Convert to fraction form
    54,084.84/81,069.81 = 31,908.66/x
  3. Step 3: Cross multiply
    54,084.84x = 81,069.81 × 31,908.66
  4. Step 4: Simplify right side
    54,084.84x = 2,586,829,003.55
  5. Step 5: Solve for x
    x = 2,586,829,003.55/54,084.84
  6. Step 6: Final answer
    x = 47,829.10

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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.