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Finding the Fourth Proportional to 65,208.97, 89,987.03 and 35,400.97

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Solution

The fourth proportional to 65,208.97, 89,987.03 and 35,400.97 is: 48,852.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,208.97 : 89,987.03 = 35,400.97 : x
  2. Step 2: Convert to fraction form
    65,208.97/89,987.03 = 35,400.97/x
  3. Step 3: Cross multiply
    65,208.97x = 89,987.03 × 35,400.97
  4. Step 4: Simplify right side
    65,208.97x = 3,185,627,972.41
  5. Step 5: Solve for x
    x = 3,185,627,972.41/65,208.97
  6. Step 6: Final answer
    x = 48,852.60

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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.