Home / 87,315.84-120,497.76-51,514.56

Finding the Fourth Proportional to 87,315.84, 120,497.76 and 51,514.56

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Solution

The fourth proportional to 87,315.84, 120,497.76 and 51,514.56 is: 71,091.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,315.84 : 120,497.76 = 51,514.56 : x
  2. Step 2: Convert to fraction form
    87,315.84/120,497.76 = 51,514.56/x
  3. Step 3: Cross multiply
    87,315.84x = 120,497.76 × 51,514.56
  4. Step 4: Simplify right side
    87,315.84x = 6,207,389,087.39
  5. Step 5: Solve for x
    x = 6,207,389,087.39/87,315.84
  6. Step 6: Final answer
    x = 71,091.21

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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.