Home / 89,920.23-124,013.73-54,103.54

Finding the Fourth Proportional to 89,920.23, 124,013.73 and 54,103.54

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Solution

The fourth proportional to 89,920.23, 124,013.73 and 54,103.54 is: 74,617.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,920.23 : 124,013.73 = 54,103.54 : x
  2. Step 2: Convert to fraction form
    89,920.23/124,013.73 = 54,103.54/x
  3. Step 3: Cross multiply
    89,920.23x = 124,013.73 × 54,103.54
  4. Step 4: Simplify right side
    89,920.23x = 6,709,581,801.60
  5. Step 5: Solve for x
    x = 6,709,581,801.60/89,920.23
  6. Step 6: Final answer
    x = 74,617.04

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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.