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Finding the Fourth Proportional to 53,960.40, 80,867.70 and 36,140.40

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Solution

The fourth proportional to 53,960.40, 80,867.70 and 36,140.40 is: 54,161.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,960.40 : 80,867.70 = 36,140.40 : x
  2. Step 2: Convert to fraction form
    53,960.40/80,867.70 = 36,140.40/x
  3. Step 3: Cross multiply
    53,960.40x = 80,867.70 × 36,140.40
  4. Step 4: Simplify right side
    53,960.40x = 2,922,591,025.08
  5. Step 5: Solve for x
    x = 2,922,591,025.08/53,960.40
  6. Step 6: Final answer
    x = 54,161.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.