Home / 87,542.37-120,803.51-51,735.72

Finding the Fourth Proportional to 87,542.37, 120,803.51 and 51,735.72

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Solution

The fourth proportional to 87,542.37, 120,803.51 and 51,735.72 is: 71,392.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,542.37 : 120,803.51 = 51,735.72 : x
  2. Step 2: Convert to fraction form
    87,542.37/120,803.51 = 51,735.72/x
  3. Step 3: Cross multiply
    87,542.37x = 120,803.51 × 51,735.72
  4. Step 4: Simplify right side
    87,542.37x = 6,249,856,568.38
  5. Step 5: Solve for x
    x = 6,249,856,568.38/87,542.37
  6. Step 6: Final answer
    x = 71,392.36

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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.