Home / 84,905.12-127,358.03-25,741.31

Finding the Fourth Proportional to 84,905.12, 127,358.03 and 25,741.31

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Solution

The fourth proportional to 84,905.12, 127,358.03 and 25,741.31 is: 38,612.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,905.12 : 127,358.03 = 25,741.31 : x
  2. Step 2: Convert to fraction form
    84,905.12/127,358.03 = 25,741.31/x
  3. Step 3: Cross multiply
    84,905.12x = 127,358.03 × 25,741.31
  4. Step 4: Simplify right side
    84,905.12x = 3,278,362,531.22
  5. Step 5: Solve for x
    x = 3,278,362,531.22/84,905.12
  6. Step 6: Final answer
    x = 38,612.07

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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.