Home / 91,754.11-126,569.37-57,749.95

Finding the Fourth Proportional to 91,754.11, 126,569.37 and 57,749.95

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Solution

The fourth proportional to 91,754.11, 126,569.37 and 57,749.95 is: 79,662.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,754.11 : 126,569.37 = 57,749.95 : x
  2. Step 2: Convert to fraction form
    91,754.11/126,569.37 = 57,749.95/x
  3. Step 3: Cross multiply
    91,754.11x = 126,569.37 × 57,749.95
  4. Step 4: Simplify right side
    91,754.11x = 7,309,374,789.03
  5. Step 5: Solve for x
    x = 7,309,374,789.03/91,754.11
  6. Step 6: Final answer
    x = 79,662.64

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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.