Home / 57,270.08-85,884.51-19,819.98

Finding the Fourth Proportional to 57,270.08, 85,884.51 and 19,819.98

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Solution

The fourth proportional to 57,270.08, 85,884.51 and 19,819.98 is: 29,722.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,270.08 : 85,884.51 = 19,819.98 : x
  2. Step 2: Convert to fraction form
    57,270.08/85,884.51 = 19,819.98/x
  3. Step 3: Cross multiply
    57,270.08x = 85,884.51 × 19,819.98
  4. Step 4: Simplify right side
    57,270.08x = 1,702,229,270.51
  5. Step 5: Solve for x
    x = 1,702,229,270.51/57,270.08
  6. Step 6: Final answer
    x = 29,722.84

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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.