Home / 91,739.43-126,546.64-57,693.92

Finding the Fourth Proportional to 91,739.43, 126,546.64 and 57,693.92

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Solution

The fourth proportional to 91,739.43, 126,546.64 and 57,693.92 is: 79,583.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,739.43 : 126,546.64 = 57,693.92 : x
  2. Step 2: Convert to fraction form
    91,739.43/126,546.64 = 57,693.92/x
  3. Step 3: Cross multiply
    91,739.43x = 126,546.64 × 57,693.92
  4. Step 4: Simplify right side
    91,739.43x = 7,300,970,947.46
  5. Step 5: Solve for x
    x = 7,300,970,947.46/91,739.43
  6. Step 6: Final answer
    x = 79,583.78

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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.