Home / 57,809.28-86,689.44-18,355.80

Finding the Fourth Proportional to 57,809.28, 86,689.44 and 18,355.80

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Solution

The fourth proportional to 57,809.28, 86,689.44 and 18,355.80 is: 27,525.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,809.28 : 86,689.44 = 18,355.80 : x
  2. Step 2: Convert to fraction form
    57,809.28/86,689.44 = 18,355.80/x
  3. Step 3: Cross multiply
    57,809.28x = 86,689.44 × 18,355.80
  4. Step 4: Simplify right side
    57,809.28x = 1,591,254,022.75
  5. Step 5: Solve for x
    x = 1,591,254,022.75/57,809.28
  6. Step 6: Final answer
    x = 27,525.93

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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.