Home / 45,406.83-68,112.80-13,817.92

Finding the Fourth Proportional to 45,406.83, 68,112.80 and 13,817.92

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Solution

The fourth proportional to 45,406.83, 68,112.80 and 13,817.92 is: 20,727.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,406.83 : 68,112.80 = 13,817.92 : x
  2. Step 2: Convert to fraction form
    45,406.83/68,112.80 = 13,817.92/x
  3. Step 3: Cross multiply
    45,406.83x = 68,112.80 × 13,817.92
  4. Step 4: Simplify right side
    45,406.83x = 941,177,051.09
  5. Step 5: Solve for x
    x = 941,177,051.09/45,406.83
  6. Step 6: Final answer
    x = 20,727.66

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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.