Home / 68,928.24-95,116.59-38,712.78

Finding the Fourth Proportional to 68,928.24, 95,116.59 and 38,712.78

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Solution

The fourth proportional to 68,928.24, 95,116.59 and 38,712.78 is: 53,421.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,928.24 : 95,116.59 = 38,712.78 : x
  2. Step 2: Convert to fraction form
    68,928.24/95,116.59 = 38,712.78/x
  3. Step 3: Cross multiply
    68,928.24x = 95,116.59 × 38,712.78
  4. Step 4: Simplify right side
    68,928.24x = 3,682,227,623.02
  5. Step 5: Solve for x
    x = 3,682,227,623.02/68,928.24
  6. Step 6: Final answer
    x = 53,421.18

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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.