Home / 79,372.10-119,034.39-31,971.98

Finding the Fourth Proportional to 79,372.10, 119,034.39 and 31,971.98

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Solution

The fourth proportional to 79,372.10, 119,034.39 and 31,971.98 is: 47,948.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,372.10 : 119,034.39 = 31,971.98 : x
  2. Step 2: Convert to fraction form
    79,372.10/119,034.39 = 31,971.98/x
  3. Step 3: Cross multiply
    79,372.10x = 119,034.39 × 31,971.98
  4. Step 4: Simplify right side
    79,372.10x = 3,805,765,136.39
  5. Step 5: Solve for x
    x = 3,805,765,136.39/79,372.10
  6. Step 6: Final answer
    x = 47,948.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.