Home / 57,784.80-86,669.76-18,342.36

Finding the Fourth Proportional to 57,784.80, 86,669.76 and 18,342.36

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Solution

The fourth proportional to 57,784.80, 86,669.76 and 18,342.36 is: 27,511.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,784.80 : 86,669.76 = 18,342.36 : x
  2. Step 2: Convert to fraction form
    57,784.80/86,669.76 = 18,342.36/x
  3. Step 3: Cross multiply
    57,784.80x = 86,669.76 × 18,342.36
  4. Step 4: Simplify right side
    57,784.80x = 1,589,727,939.03
  5. Step 5: Solve for x
    x = 1,589,727,939.03/57,784.80
  6. Step 6: Final answer
    x = 27,511.18

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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.