Home / 87,142.23-120,256.27-49,416.48

Finding the Fourth Proportional to 87,142.23, 120,256.27 and 49,416.48

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Solution

The fourth proportional to 87,142.23, 120,256.27 and 49,416.48 is: 68,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,142.23 : 120,256.27 = 49,416.48 : x
  2. Step 2: Convert to fraction form
    87,142.23/120,256.27 = 49,416.48/x
  3. Step 3: Cross multiply
    87,142.23x = 120,256.27 × 49,416.48
  4. Step 4: Simplify right side
    87,142.23x = 5,942,641,437.79
  5. Step 5: Solve for x
    x = 5,942,641,437.79/87,142.23
  6. Step 6: Final answer
    x = 68,194.74

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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.