Home / 91,708.08-126,503.41-57,662.61

Finding the Fourth Proportional to 91,708.08, 126,503.41 and 57,662.61

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Solution

The fourth proportional to 91,708.08, 126,503.41 and 57,662.61 is: 79,540.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,708.08 : 126,503.41 = 57,662.61 : x
  2. Step 2: Convert to fraction form
    91,708.08/126,503.41 = 57,662.61/x
  3. Step 3: Cross multiply
    91,708.08x = 126,503.41 × 57,662.61
  4. Step 4: Simplify right side
    91,708.08x = 7,294,516,794.50
  5. Step 5: Solve for x
    x = 7,294,516,794.50/91,708.08
  6. Step 6: Final answer
    x = 79,540.61

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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.