Home / 45,278.64-67,921.68-14,113.89

Finding the Fourth Proportional to 45,278.64, 67,921.68 and 14,113.89

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Solution

The fourth proportional to 45,278.64, 67,921.68 and 14,113.89 is: 21,171.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,278.64 : 67,921.68 = 14,113.89 : x
  2. Step 2: Convert to fraction form
    45,278.64/67,921.68 = 14,113.89/x
  3. Step 3: Cross multiply
    45,278.64x = 67,921.68 × 14,113.89
  4. Step 4: Simplify right side
    45,278.64x = 958,639,120.14
  5. Step 5: Solve for x
    x = 958,639,120.14/45,278.64
  6. Step 6: Final answer
    x = 21,171.99

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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.