Home / 57,456.13-86,160.61-21,930.39

Finding the Fourth Proportional to 57,456.13, 86,160.61 and 21,930.39

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Solution

The fourth proportional to 57,456.13, 86,160.61 and 21,930.39 is: 32,886.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,456.13 : 86,160.61 = 21,930.39 : x
  2. Step 2: Convert to fraction form
    57,456.13/86,160.61 = 21,930.39/x
  3. Step 3: Cross multiply
    57,456.13x = 86,160.61 × 21,930.39
  4. Step 4: Simplify right side
    57,456.13x = 1,889,535,779.94
  5. Step 5: Solve for x
    x = 1,889,535,779.94/57,456.13
  6. Step 6: Final answer
    x = 32,886.58

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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.