Home / 87,089.89-120,195.17-51,283.24

Finding the Fourth Proportional to 87,089.89, 120,195.17 and 51,283.24

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Solution

The fourth proportional to 87,089.89, 120,195.17 and 51,283.24 is: 70,777.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,089.89 : 120,195.17 = 51,283.24 : x
  2. Step 2: Convert to fraction form
    87,089.89/120,195.17 = 51,283.24/x
  3. Step 3: Cross multiply
    87,089.89x = 120,195.17 × 51,283.24
  4. Step 4: Simplify right side
    87,089.89x = 6,163,997,749.95
  5. Step 5: Solve for x
    x = 6,163,997,749.95/87,089.89
  6. Step 6: Final answer
    x = 70,777.42

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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.