Home / 57,515.40-86,273.10-18,072.45

Finding the Fourth Proportional to 57,515.40, 86,273.10 and 18,072.45

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Solution

The fourth proportional to 57,515.40, 86,273.10 and 18,072.45 is: 27,108.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,515.40 : 86,273.10 = 18,072.45 : x
  2. Step 2: Convert to fraction form
    57,515.40/86,273.10 = 18,072.45/x
  3. Step 3: Cross multiply
    57,515.40x = 86,273.10 × 18,072.45
  4. Step 4: Simplify right side
    57,515.40x = 1,559,166,286.10
  5. Step 5: Solve for x
    x = 1,559,166,286.10/57,515.40
  6. Step 6: Final answer
    x = 27,108.68

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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.