Home / 53,921.70-80,880.12-14,478.75

Finding the Fourth Proportional to 53,921.70, 80,880.12 and 14,478.75

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Solution

The fourth proportional to 53,921.70, 80,880.12 and 14,478.75 is: 21,717.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,921.70 : 80,880.12 = 14,478.75 : x
  2. Step 2: Convert to fraction form
    53,921.70/80,880.12 = 14,478.75/x
  3. Step 3: Cross multiply
    53,921.70x = 80,880.12 × 14,478.75
  4. Step 4: Simplify right side
    53,921.70x = 1,171,043,037.45
  5. Step 5: Solve for x
    x = 1,171,043,037.45/53,921.70
  6. Step 6: Final answer
    x = 21,717.47

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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.