Home / 45,270.63-67,905.81-14,105.88

Finding the Fourth Proportional to 45,270.63, 67,905.81 and 14,105.88

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Solution

The fourth proportional to 45,270.63, 67,905.81 and 14,105.88 is: 21,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,270.63 : 67,905.81 = 14,105.88 : x
  2. Step 2: Convert to fraction form
    45,270.63/67,905.81 = 14,105.88/x
  3. Step 3: Cross multiply
    45,270.63x = 67,905.81 × 14,105.88
  4. Step 4: Simplify right side
    45,270.63x = 957,871,207.16
  5. Step 5: Solve for x
    x = 957,871,207.16/45,270.63
  6. Step 6: Final answer
    x = 21,158.78

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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.