Home / 53,385.58-80,076.80-13,942.70

Finding the Fourth Proportional to 53,385.58, 80,076.80 and 13,942.70

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Solution

The fourth proportional to 53,385.58, 80,076.80 and 13,942.70 is: 20,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,385.58 : 80,076.80 = 13,942.70 : x
  2. Step 2: Convert to fraction form
    53,385.58/80,076.80 = 13,942.70/x
  3. Step 3: Cross multiply
    53,385.58x = 80,076.80 × 13,942.70
  4. Step 4: Simplify right side
    53,385.58x = 1,116,486,799.36
  5. Step 5: Solve for x
    x = 1,116,486,799.36/53,385.58
  6. Step 6: Final answer
    x = 20,913.64

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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.