Home / 57,750.20-86,625.30-39,087.80

Finding the Fourth Proportional to 57,750.20, 86,625.30 and 39,087.80

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Solution

The fourth proportional to 57,750.20, 86,625.30 and 39,087.80 is: 58,631.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,750.20 : 86,625.30 = 39,087.80 : x
  2. Step 2: Convert to fraction form
    57,750.20/86,625.30 = 39,087.80/x
  3. Step 3: Cross multiply
    57,750.20x = 86,625.30 × 39,087.80
  4. Step 4: Simplify right side
    57,750.20x = 3,385,992,401.34
  5. Step 5: Solve for x
    x = 3,385,992,401.34/57,750.20
  6. Step 6: Final answer
    x = 58,631.70

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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.