Home / 57,306.34-79,080.33-31,810.78

Finding the Fourth Proportional to 57,306.34, 79,080.33 and 31,810.78

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Solution

The fourth proportional to 57,306.34, 79,080.33 and 31,810.78 is: 43,897.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,306.34 : 79,080.33 = 31,810.78 : x
  2. Step 2: Convert to fraction form
    57,306.34/79,080.33 = 31,810.78/x
  3. Step 3: Cross multiply
    57,306.34x = 79,080.33 × 31,810.78
  4. Step 4: Simplify right side
    57,306.34x = 2,515,606,979.96
  5. Step 5: Solve for x
    x = 2,515,606,979.96/57,306.34
  6. Step 6: Final answer
    x = 43,897.53

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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.