Home / 53,390.63-80,086.73-13,947.75

Finding the Fourth Proportional to 53,390.63, 80,086.73 and 13,947.75

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Solution

The fourth proportional to 53,390.63, 80,086.73 and 13,947.75 is: 20,921.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,390.63 : 80,086.73 = 13,947.75 : x
  2. Step 2: Convert to fraction form
    53,390.63/80,086.73 = 13,947.75/x
  3. Step 3: Cross multiply
    53,390.63x = 80,086.73 × 13,947.75
  4. Step 4: Simplify right side
    53,390.63x = 1,117,029,618.62
  5. Step 5: Solve for x
    x = 1,117,029,618.62/53,390.63
  6. Step 6: Final answer
    x = 20,921.83

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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.