Home / 68,221.48-94,145.80-39,546.68

Finding the Fourth Proportional to 68,221.48, 94,145.80 and 39,546.68

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Solution

The fourth proportional to 68,221.48, 94,145.80 and 39,546.68 is: 54,574.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,221.48 : 94,145.80 = 39,546.68 : x
  2. Step 2: Convert to fraction form
    68,221.48/94,145.80 = 39,546.68/x
  3. Step 3: Cross multiply
    68,221.48x = 94,145.80 × 39,546.68
  4. Step 4: Simplify right side
    68,221.48x = 3,723,153,825.94
  5. Step 5: Solve for x
    x = 3,723,153,825.94/68,221.48
  6. Step 6: Final answer
    x = 54,574.51

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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.