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Finding the Fourth Proportional to 71,201.51, 98,243.86 and 39,364.25

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Solution

The fourth proportional to 71,201.51, 98,243.86 and 39,364.25 is: 54,314.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,201.51 : 98,243.86 = 39,364.25 : x
  2. Step 2: Convert to fraction form
    71,201.51/98,243.86 = 39,364.25/x
  3. Step 3: Cross multiply
    71,201.51x = 98,243.86 × 39,364.25
  4. Step 4: Simplify right side
    71,201.51x = 3,867,295,866.01
  5. Step 5: Solve for x
    x = 3,867,295,866.01/71,201.51
  6. Step 6: Final answer
    x = 54,314.80

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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.