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Finding the Fourth Proportional to 71,383.96, 98,505.74 and 39,550.96

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Solution

The fourth proportional to 71,383.96, 98,505.74 and 39,550.96 is: 54,578.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,383.96 : 98,505.74 = 39,550.96 : x
  2. Step 2: Convert to fraction form
    71,383.96/98,505.74 = 39,550.96/x
  3. Step 3: Cross multiply
    71,383.96x = 98,505.74 × 39,550.96
  4. Step 4: Simplify right side
    71,383.96x = 3,895,996,582.51
  5. Step 5: Solve for x
    x = 3,895,996,582.51/71,383.96
  6. Step 6: Final answer
    x = 54,578.04

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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.