Home / 68,919.10-95,100.96-38,707.72

Finding the Fourth Proportional to 68,919.10, 95,100.96 and 38,707.72

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Solution

The fourth proportional to 68,919.10, 95,100.96 and 38,707.72 is: 53,412.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,919.10 : 95,100.96 = 38,707.72 : x
  2. Step 2: Convert to fraction form
    68,919.10/95,100.96 = 38,707.72/x
  3. Step 3: Cross multiply
    68,919.10x = 95,100.96 × 38,707.72
  4. Step 4: Simplify right side
    68,919.10x = 3,681,141,331.41
  5. Step 5: Solve for x
    x = 3,681,141,331.41/68,919.10
  6. Step 6: Final answer
    x = 53,412.50

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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.