Home / 57,146.40-78,861.96-31,996.08

Finding the Fourth Proportional to 57,146.40, 78,861.96 and 31,996.08

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Solution

The fourth proportional to 57,146.40, 78,861.96 and 31,996.08 is: 44,154.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,146.40 : 78,861.96 = 31,996.08 : x
  2. Step 2: Convert to fraction form
    57,146.40/78,861.96 = 31,996.08/x
  3. Step 3: Cross multiply
    57,146.40x = 78,861.96 × 31,996.08
  4. Step 4: Simplify right side
    57,146.40x = 2,523,273,581.12
  5. Step 5: Solve for x
    x = 2,523,273,581.12/57,146.40
  6. Step 6: Final answer
    x = 44,154.55

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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.