Home / 83,388.08-125,111.48-55,419.18

Finding the Fourth Proportional to 83,388.08, 125,111.48 and 55,419.18

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Solution

The fourth proportional to 83,388.08, 125,111.48 and 55,419.18 is: 83,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,388.08 : 125,111.48 = 55,419.18 : x
  2. Step 2: Convert to fraction form
    83,388.08/125,111.48 = 55,419.18/x
  3. Step 3: Cross multiply
    83,388.08x = 125,111.48 × 55,419.18
  4. Step 4: Simplify right side
    83,388.08x = 6,933,575,353.09
  5. Step 5: Solve for x
    x = 6,933,575,353.09/83,388.08
  6. Step 6: Final answer
    x = 83,148.28

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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.