Home / 75,910.55-113,869.97-31,541.79

Finding the Fourth Proportional to 75,910.55, 113,869.97 and 31,541.79

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Solution

The fourth proportional to 75,910.55, 113,869.97 and 31,541.79 is: 47,314.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,910.55 : 113,869.97 = 31,541.79 : x
  2. Step 2: Convert to fraction form
    75,910.55/113,869.97 = 31,541.79/x
  3. Step 3: Cross multiply
    75,910.55x = 113,869.97 × 31,541.79
  4. Step 4: Simplify right side
    75,910.55x = 3,591,662,681.05
  5. Step 5: Solve for x
    x = 3,591,662,681.05/75,910.55
  6. Step 6: Final answer
    x = 47,314.41

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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.