Home / 83,207.12-114,885.96-51,419.60

Finding the Fourth Proportional to 83,207.12, 114,885.96 and 51,419.60

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Solution

The fourth proportional to 83,207.12, 114,885.96 and 51,419.60 is: 70,996.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,207.12 : 114,885.96 = 51,419.60 : x
  2. Step 2: Convert to fraction form
    83,207.12/114,885.96 = 51,419.60/x
  3. Step 3: Cross multiply
    83,207.12x = 114,885.96 × 51,419.60
  4. Step 4: Simplify right side
    83,207.12x = 5,907,390,108.82
  5. Step 5: Solve for x
    x = 5,907,390,108.82/83,207.12
  6. Step 6: Final answer
    x = 70,996.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.