Home / 91,901.17-126,826.44-51,615.78

Finding the Fourth Proportional to 91,901.17, 126,826.44 and 51,615.78

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Solution

The fourth proportional to 91,901.17, 126,826.44 and 51,615.78 is: 71,231.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,901.17 : 126,826.44 = 51,615.78 : x
  2. Step 2: Convert to fraction form
    91,901.17/126,826.44 = 51,615.78/x
  3. Step 3: Cross multiply
    91,901.17x = 126,826.44 × 51,615.78
  4. Step 4: Simplify right side
    91,901.17x = 6,546,245,625.22
  5. Step 5: Solve for x
    x = 6,546,245,625.22/91,901.17
  6. Step 6: Final answer
    x = 71,231.37

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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.