Home / 57,270.13-79,031.29-31,776.40

Finding the Fourth Proportional to 57,270.13, 79,031.29 and 31,776.40

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Solution

The fourth proportional to 57,270.13, 79,031.29 and 31,776.40 is: 43,850.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,270.13 : 79,031.29 = 31,776.40 : x
  2. Step 2: Convert to fraction form
    57,270.13/79,031.29 = 31,776.40/x
  3. Step 3: Cross multiply
    57,270.13x = 79,031.29 × 31,776.40
  4. Step 4: Simplify right side
    57,270.13x = 2,511,329,883.56
  5. Step 5: Solve for x
    x = 2,511,329,883.56/57,270.13
  6. Step 6: Final answer
    x = 43,850.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.