Home / 84,921.21-127,338.08-31,591.22

Finding the Fourth Proportional to 84,921.21, 127,338.08 and 31,591.22

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Solution

The fourth proportional to 84,921.21, 127,338.08 and 31,591.22 is: 47,370.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,921.21 : 127,338.08 = 31,591.22 : x
  2. Step 2: Convert to fraction form
    84,921.21/127,338.08 = 31,591.22/x
  3. Step 3: Cross multiply
    84,921.21x = 127,338.08 × 31,591.22
  4. Step 4: Simplify right side
    84,921.21x = 4,022,764,505.01
  5. Step 5: Solve for x
    x = 4,022,764,505.01/84,921.21
  6. Step 6: Final answer
    x = 47,370.55

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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.