Home / 83,917.90-125,955.96-30,661.48

Finding the Fourth Proportional to 83,917.90, 125,955.96 and 30,661.48

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Solution

The fourth proportional to 83,917.90, 125,955.96 and 30,661.48 is: 46,021.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,917.90 : 125,955.96 = 30,661.48 : x
  2. Step 2: Convert to fraction form
    83,917.90/125,955.96 = 30,661.48/x
  3. Step 3: Cross multiply
    83,917.90x = 125,955.96 × 30,661.48
  4. Step 4: Simplify right side
    83,917.90x = 3,861,996,148.42
  5. Step 5: Solve for x
    x = 3,861,996,148.42/83,917.90
  6. Step 6: Final answer
    x = 46,021.12

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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.