Home / 68,127.84-94,017.12-39,828

Finding the Fourth Proportional to 68,127.84, 94,017.12 and 39,828

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Solution

The fourth proportional to 68,127.84, 94,017.12 and 39,828 is: 54,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,127.84 : 94,017.12 = 39,828 : x
  2. Step 2: Convert to fraction form
    68,127.84/94,017.12 = 39,828/x
  3. Step 3: Cross multiply
    68,127.84x = 94,017.12 × 39,828
  4. Step 4: Simplify right side
    68,127.84x = 3,744,513,855.36
  5. Step 5: Solve for x
    x = 3,744,513,855.36/68,127.84
  6. Step 6: Final answer
    x = 54,963.05

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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.