Home / 45,243.56-67,865.34-14,078.81

Finding the Fourth Proportional to 45,243.56, 67,865.34 and 14,078.81

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Solution

The fourth proportional to 45,243.56, 67,865.34 and 14,078.81 is: 21,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,243.56 : 67,865.34 = 14,078.81 : x
  2. Step 2: Convert to fraction form
    45,243.56/67,865.34 = 14,078.81/x
  3. Step 3: Cross multiply
    45,243.56x = 67,865.34 × 14,078.81
  4. Step 4: Simplify right side
    45,243.56x = 955,463,449.90
  5. Step 5: Solve for x
    x = 955,463,449.90/45,243.56
  6. Step 6: Final answer
    x = 21,118.22

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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.