Home / 84,984.21-127,467.99-25,820.46

Finding the Fourth Proportional to 84,984.21, 127,467.99 and 25,820.46

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Solution

The fourth proportional to 84,984.21, 127,467.99 and 25,820.46 is: 38,728.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,984.21 : 127,467.99 = 25,820.46 : x
  2. Step 2: Convert to fraction form
    84,984.21/127,467.99 = 25,820.46/x
  3. Step 3: Cross multiply
    84,984.21x = 127,467.99 × 25,820.46
  4. Step 4: Simplify right side
    84,984.21x = 3,291,282,137.08
  5. Step 5: Solve for x
    x = 3,291,282,137.08/84,984.21
  6. Step 6: Final answer
    x = 38,728.16

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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.