Home / 45,423.89-68,138.71-14,260.37

Finding the Fourth Proportional to 45,423.89, 68,138.71 and 14,260.37

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Solution

The fourth proportional to 45,423.89, 68,138.71 and 14,260.37 is: 21,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,423.89 : 68,138.71 = 14,260.37 : x
  2. Step 2: Convert to fraction form
    45,423.89/68,138.71 = 14,260.37/x
  3. Step 3: Cross multiply
    45,423.89x = 68,138.71 × 14,260.37
  4. Step 4: Simplify right side
    45,423.89x = 971,682,839.58
  5. Step 5: Solve for x
    x = 971,682,839.58/45,423.89
  6. Step 6: Final answer
    x = 21,391.45

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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.