Home / 57,930.56-79,982.88-39,060.80

Finding the Fourth Proportional to 57,930.56, 79,982.88 and 39,060.80

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Solution

The fourth proportional to 57,930.56, 79,982.88 and 39,060.80 is: 53,930.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,930.56 : 79,982.88 = 39,060.80 : x
  2. Step 2: Convert to fraction form
    57,930.56/79,982.88 = 39,060.80/x
  3. Step 3: Cross multiply
    57,930.56x = 79,982.88 × 39,060.80
  4. Step 4: Simplify right side
    57,930.56x = 3,124,195,279.10
  5. Step 5: Solve for x
    x = 3,124,195,279.10/57,930.56
  6. Step 6: Final answer
    x = 53,930.00

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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.