Home / 71,324.73-98,421.23-42,638.69

Finding the Fourth Proportional to 71,324.73, 98,421.23 and 42,638.69

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Solution

The fourth proportional to 71,324.73, 98,421.23 and 42,638.69 is: 58,837.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,324.73 : 98,421.23 = 42,638.69 : x
  2. Step 2: Convert to fraction form
    71,324.73/98,421.23 = 42,638.69/x
  3. Step 3: Cross multiply
    71,324.73x = 98,421.23 × 42,638.69
  4. Step 4: Simplify right side
    71,324.73x = 4,196,551,610.09
  5. Step 5: Solve for x
    x = 4,196,551,610.09/71,324.73
  6. Step 6: Final answer
    x = 58,837.26

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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.