Home / 87,300.75-120,475.05-47,556.75

Finding the Fourth Proportional to 87,300.75, 120,475.05 and 47,556.75

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Solution

The fourth proportional to 87,300.75, 120,475.05 and 47,556.75 is: 65,628.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,300.75 : 120,475.05 = 47,556.75 : x
  2. Step 2: Convert to fraction form
    87,300.75/120,475.05 = 47,556.75/x
  3. Step 3: Cross multiply
    87,300.75x = 120,475.05 × 47,556.75
  4. Step 4: Simplify right side
    87,300.75x = 5,729,401,834.09
  5. Step 5: Solve for x
    x = 5,729,401,834.09/87,300.75
  6. Step 6: Final answer
    x = 65,628.32

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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.