Home / 55,043.78-75,965.11-31,174.70

Finding the Fourth Proportional to 55,043.78, 75,965.11 and 31,174.70

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Solution

The fourth proportional to 55,043.78, 75,965.11 and 31,174.70 is: 43,023.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,043.78 : 75,965.11 = 31,174.70 : x
  2. Step 2: Convert to fraction form
    55,043.78/75,965.11 = 31,174.70/x
  3. Step 3: Cross multiply
    55,043.78x = 75,965.11 × 31,174.70
  4. Step 4: Simplify right side
    55,043.78x = 2,368,189,056.95
  5. Step 5: Solve for x
    x = 2,368,189,056.95/55,043.78
  6. Step 6: Final answer
    x = 43,023.74

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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.