Home / 87,892.75-121,291.94-47,606.50

Finding the Fourth Proportional to 87,892.75, 121,291.94 and 47,606.50

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Solution

The fourth proportional to 87,892.75, 121,291.94 and 47,606.50 is: 65,696.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,892.75 : 121,291.94 = 47,606.50 : x
  2. Step 2: Convert to fraction form
    87,892.75/121,291.94 = 47,606.50/x
  3. Step 3: Cross multiply
    87,892.75x = 121,291.94 × 47,606.50
  4. Step 4: Simplify right side
    87,892.75x = 5,774,284,135.15
  5. Step 5: Solve for x
    x = 5,774,284,135.15/87,892.75
  6. Step 6: Final answer
    x = 65,696.94

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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.