Home / 87,645.70-131,364.73-40,220.82

Finding the Fourth Proportional to 87,645.70, 131,364.73 and 40,220.82

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Solution

The fourth proportional to 87,645.70, 131,364.73 and 40,220.82 is: 60,283.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,645.70 : 131,364.73 = 40,220.82 : x
  2. Step 2: Convert to fraction form
    87,645.70/131,364.73 = 40,220.82/x
  3. Step 3: Cross multiply
    87,645.70x = 131,364.73 × 40,220.82
  4. Step 4: Simplify right side
    87,645.70x = 5,283,596,301.75
  5. Step 5: Solve for x
    x = 5,283,596,301.75/87,645.70
  6. Step 6: Final answer
    x = 60,283.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.