Home / 71,255.43-98,331.84-39,423.65

Finding the Fourth Proportional to 71,255.43, 98,331.84 and 39,423.65

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Solution

The fourth proportional to 71,255.43, 98,331.84 and 39,423.65 is: 54,404.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,255.43 : 98,331.84 = 39,423.65 : x
  2. Step 2: Convert to fraction form
    71,255.43/98,331.84 = 39,423.65/x
  3. Step 3: Cross multiply
    71,255.43x = 98,331.84 × 39,423.65
  4. Step 4: Simplify right side
    71,255.43x = 3,876,599,552.36
  5. Step 5: Solve for x
    x = 3,876,599,552.36/71,255.43
  6. Step 6: Final answer
    x = 54,404.27

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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.