Home / 40,176.92-55,430.56-23,180.76

Finding the Fourth Proportional to 40,176.92, 55,430.56 and 23,180.76

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Solution

The fourth proportional to 40,176.92, 55,430.56 and 23,180.76 is: 31,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,176.92 : 55,430.56 = 23,180.76 : x
  2. Step 2: Convert to fraction form
    40,176.92/55,430.56 = 23,180.76/x
  3. Step 3: Cross multiply
    40,176.92x = 55,430.56 × 23,180.76
  4. Step 4: Simplify right side
    40,176.92x = 1,284,922,392.12
  5. Step 5: Solve for x
    x = 1,284,922,392.12/40,176.92
  6. Step 6: Final answer
    x = 31,981.61

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Double scale
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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.