Home / 68,976.40-95,180.34-38,756.92

Finding the Fourth Proportional to 68,976.40, 95,180.34 and 38,756.92

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Solution

The fourth proportional to 68,976.40, 95,180.34 and 38,756.92 is: 53,480.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,976.40 : 95,180.34 = 38,756.92 : x
  2. Step 2: Convert to fraction form
    68,976.40/95,180.34 = 38,756.92/x
  3. Step 3: Cross multiply
    68,976.40x = 95,180.34 × 38,756.92
  4. Step 4: Simplify right side
    68,976.40x = 3,688,896,822.95
  5. Step 5: Solve for x
    x = 3,688,896,822.95/68,976.40
  6. Step 6: Final answer
    x = 53,480.56

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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.