Home / 45,119.64-67,679.43-13,954.89

Finding the Fourth Proportional to 45,119.64, 67,679.43 and 13,954.89

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Solution

The fourth proportional to 45,119.64, 67,679.43 and 13,954.89 is: 20,932.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,119.64 : 67,679.43 = 13,954.89 : x
  2. Step 2: Convert to fraction form
    45,119.64/67,679.43 = 13,954.89/x
  3. Step 3: Cross multiply
    45,119.64x = 67,679.43 × 13,954.89
  4. Step 4: Simplify right side
    45,119.64x = 944,459,000.91
  5. Step 5: Solve for x
    x = 944,459,000.91/45,119.64
  6. Step 6: Final answer
    x = 20,932.33

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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.