Home / 57,553.20-86,329.80-18,122.40

Finding the Fourth Proportional to 57,553.20, 86,329.80 and 18,122.40

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Solution

The fourth proportional to 57,553.20, 86,329.80 and 18,122.40 is: 27,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,553.20 : 86,329.80 = 18,122.40 : x
  2. Step 2: Convert to fraction form
    57,553.20/86,329.80 = 18,122.40/x
  3. Step 3: Cross multiply
    57,553.20x = 86,329.80 × 18,122.40
  4. Step 4: Simplify right side
    57,553.20x = 1,564,503,167.52
  5. Step 5: Solve for x
    x = 1,564,503,167.52/57,553.20
  6. Step 6: Final answer
    x = 27,183.60

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1.5x scale

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.