Home / 84,811.10-127,168.05-25,637.90

Finding the Fourth Proportional to 84,811.10, 127,168.05 and 25,637.90

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Solution

The fourth proportional to 84,811.10, 127,168.05 and 25,637.90 is: 38,442.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,811.10 : 127,168.05 = 25,637.90 : x
  2. Step 2: Convert to fraction form
    84,811.10/127,168.05 = 25,637.90/x
  3. Step 3: Cross multiply
    84,811.10x = 127,168.05 × 25,637.90
  4. Step 4: Simplify right side
    84,811.10x = 3,260,321,749.10
  5. Step 5: Solve for x
    x = 3,260,321,749.10/84,811.10
  6. Step 6: Final answer
    x = 38,442.16

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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.