Home / 57,269.13-79,029.91-31,775.40

Finding the Fourth Proportional to 57,269.13, 79,029.91 and 31,775.40

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Solution

The fourth proportional to 57,269.13, 79,029.91 and 31,775.40 is: 43,849.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,269.13 : 79,029.91 = 31,775.40 : x
  2. Step 2: Convert to fraction form
    57,269.13/79,029.91 = 31,775.40/x
  3. Step 3: Cross multiply
    57,269.13x = 79,029.91 × 31,775.40
  4. Step 4: Simplify right side
    57,269.13x = 2,511,207,002.21
  5. Step 5: Solve for x
    x = 2,511,207,002.21/57,269.13
  6. Step 6: Final answer
    x = 43,849.23

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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.