Home / 57,806.13-79,772.45-31,310.13

Finding the Fourth Proportional to 57,806.13, 79,772.45 and 31,310.13

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Solution

The fourth proportional to 57,806.13, 79,772.45 and 31,310.13 is: 43,207.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,806.13 : 79,772.45 = 31,310.13 : x
  2. Step 2: Convert to fraction form
    57,806.13/79,772.45 = 31,310.13/x
  3. Step 3: Cross multiply
    57,806.13x = 79,772.45 × 31,310.13
  4. Step 4: Simplify right side
    57,806.13x = 2,497,685,779.92
  5. Step 5: Solve for x
    x = 2,497,685,779.92/57,806.13
  6. Step 6: Final answer
    x = 43,207.97

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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.