Home / 87,893.09-121,288.96-51,589.60

Finding the Fourth Proportional to 87,893.09, 121,288.96 and 51,589.60

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Solution

The fourth proportional to 87,893.09, 121,288.96 and 51,589.60 is: 71,191.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,893.09 : 121,288.96 = 51,589.60 : x
  2. Step 2: Convert to fraction form
    87,893.09/121,288.96 = 51,589.60/x
  3. Step 3: Cross multiply
    87,893.09x = 121,288.96 × 51,589.60
  4. Step 4: Simplify right side
    87,893.09x = 6,257,248,930.82
  5. Step 5: Solve for x
    x = 6,257,248,930.82/87,893.09
  6. Step 6: Final answer
    x = 71,191.59

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1.5x scale

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.