Home / 84,802.20-127,221.77-25,636.34

Finding the Fourth Proportional to 84,802.20, 127,221.77 and 25,636.34

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Solution

The fourth proportional to 84,802.20, 127,221.77 and 25,636.34 is: 38,460.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,802.20 : 127,221.77 = 25,636.34 : x
  2. Step 2: Convert to fraction form
    84,802.20/127,221.77 = 25,636.34/x
  3. Step 3: Cross multiply
    84,802.20x = 127,221.77 × 25,636.34
  4. Step 4: Simplify right side
    84,802.20x = 3,261,499,786.83
  5. Step 5: Solve for x
    x = 3,261,499,786.83/84,802.20
  6. Step 6: Final answer
    x = 38,460.08

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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.