Home / 57,771.15-86,659.80-18,331.35

Finding the Fourth Proportional to 57,771.15, 86,659.80 and 18,331.35

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Solution

The fourth proportional to 57,771.15, 86,659.80 and 18,331.35 is: 27,498.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,771.15 : 86,659.80 = 18,331.35 : x
  2. Step 2: Convert to fraction form
    57,771.15/86,659.80 = 18,331.35/x
  3. Step 3: Cross multiply
    57,771.15x = 86,659.80 × 18,331.35
  4. Step 4: Simplify right side
    57,771.15x = 1,588,591,124.73
  5. Step 5: Solve for x
    x = 1,588,591,124.73/57,771.15
  6. Step 6: Final answer
    x = 27,498.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.