Home / 87,845.30-121,226.56-47,559.07

Finding the Fourth Proportional to 87,845.30, 121,226.56 and 47,559.07

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Solution

The fourth proportional to 87,845.30, 121,226.56 and 47,559.07 is: 65,631.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,845.30 : 121,226.56 = 47,559.07 : x
  2. Step 2: Convert to fraction form
    87,845.30/121,226.56 = 47,559.07/x
  3. Step 3: Cross multiply
    87,845.30x = 121,226.56 × 47,559.07
  4. Step 4: Simplify right side
    87,845.30x = 5,765,422,030.94
  5. Step 5: Solve for x
    x = 5,765,422,030.94/87,845.30
  6. Step 6: Final answer
    x = 65,631.54

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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.