Home / 91,301.88-125,996.76-51,015.72

Finding the Fourth Proportional to 91,301.88, 125,996.76 and 51,015.72

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Solution

The fourth proportional to 91,301.88, 125,996.76 and 51,015.72 is: 70,401.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,301.88 : 125,996.76 = 51,015.72 : x
  2. Step 2: Convert to fraction form
    91,301.88/125,996.76 = 51,015.72/x
  3. Step 3: Cross multiply
    91,301.88x = 125,996.76 × 51,015.72
  4. Step 4: Simplify right side
    91,301.88x = 6,427,815,429.07
  5. Step 5: Solve for x
    x = 6,427,815,429.07/91,301.88
  6. Step 6: Final answer
    x = 70,401.79

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1.5x scale

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.