Home / 78,222.56-117,337.24-38,275.19

Finding the Fourth Proportional to 78,222.56, 117,337.24 and 38,275.19

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Solution

The fourth proportional to 78,222.56, 117,337.24 and 38,275.19 is: 57,414.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,222.56 : 117,337.24 = 38,275.19 : x
  2. Step 2: Convert to fraction form
    78,222.56/117,337.24 = 38,275.19/x
  3. Step 3: Cross multiply
    78,222.56x = 117,337.24 × 38,275.19
  4. Step 4: Simplify right side
    78,222.56x = 4,491,104,568.39
  5. Step 5: Solve for x
    x = 4,491,104,568.39/78,222.56
  6. Step 6: Final answer
    x = 57,414.44

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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.