Home / 68,218.25-93,459.34-65,661.47

Finding the Fourth Proportional to 68,218.25, 93,459.34 and 65,661.47

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Solution

The fourth proportional to 68,218.25, 93,459.34 and 65,661.47 is: 89,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,218.25 : 93,459.34 = 65,661.47 : x
  2. Step 2: Convert to fraction form
    68,218.25/93,459.34 = 65,661.47/x
  3. Step 3: Cross multiply
    68,218.25x = 93,459.34 × 65,661.47
  4. Step 4: Simplify right side
    68,218.25x = 6,136,677,554.97
  5. Step 5: Solve for x
    x = 6,136,677,554.97/68,218.25
  6. Step 6: Final answer
    x = 89,956.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.