Home / 57,830.28-86,720.94-18,376.80

Finding the Fourth Proportional to 57,830.28, 86,720.94 and 18,376.80

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Solution

The fourth proportional to 57,830.28, 86,720.94 and 18,376.80 is: 27,557.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,830.28 : 86,720.94 = 18,376.80 : x
  2. Step 2: Convert to fraction form
    57,830.28/86,720.94 = 18,376.80/x
  3. Step 3: Cross multiply
    57,830.28x = 86,720.94 × 18,376.80
  4. Step 4: Simplify right side
    57,830.28x = 1,593,653,370.19
  5. Step 5: Solve for x
    x = 1,593,653,370.19/57,830.28
  6. Step 6: Final answer
    x = 27,557.42

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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.