Home / 68,020.97-93,654.53-61,715.29

Finding the Fourth Proportional to 68,020.97, 93,654.53 and 61,715.29

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Solution

The fourth proportional to 68,020.97, 93,654.53 and 61,715.29 is: 84,972.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,020.97 : 93,654.53 = 61,715.29 : x
  2. Step 2: Convert to fraction form
    68,020.97/93,654.53 = 61,715.29/x
  3. Step 3: Cross multiply
    68,020.97x = 93,654.53 × 61,715.29
  4. Step 4: Simplify right side
    68,020.97x = 5,779,916,606.49
  5. Step 5: Solve for x
    x = 5,779,916,606.49/68,020.97
  6. Step 6: Final answer
    x = 84,972.58

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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.