Home / 78,202.02-117,302.97-31,443.96

Finding the Fourth Proportional to 78,202.02, 117,302.97 and 31,443.96

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Solution

The fourth proportional to 78,202.02, 117,302.97 and 31,443.96 is: 47,165.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,202.02 : 117,302.97 = 31,443.96 : x
  2. Step 2: Convert to fraction form
    78,202.02/117,302.97 = 31,443.96/x
  3. Step 3: Cross multiply
    78,202.02x = 117,302.97 × 31,443.96
  4. Step 4: Simplify right side
    78,202.02x = 3,688,469,896.56
  5. Step 5: Solve for x
    x = 3,688,469,896.56/78,202.02
  6. Step 6: Final answer
    x = 47,165.92

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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.