Home / 84,734.38-127,023.09-31,396.64

Finding the Fourth Proportional to 84,734.38, 127,023.09 and 31,396.64

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Solution

The fourth proportional to 84,734.38, 127,023.09 and 31,396.64 is: 47,065.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,734.38 : 127,023.09 = 31,396.64 : x
  2. Step 2: Convert to fraction form
    84,734.38/127,023.09 = 31,396.64/x
  3. Step 3: Cross multiply
    84,734.38x = 127,023.09 × 31,396.64
  4. Step 4: Simplify right side
    84,734.38x = 3,988,097,832.82
  5. Step 5: Solve for x
    x = 3,988,097,832.82/84,734.38
  6. Step 6: Final answer
    x = 47,065.88

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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.