Home / 45,369.70-68,057.23-13,780.81

Finding the Fourth Proportional to 45,369.70, 68,057.23 and 13,780.81

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Solution

The fourth proportional to 45,369.70, 68,057.23 and 13,780.81 is: 20,672.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,369.70 : 68,057.23 = 13,780.81 : x
  2. Step 2: Convert to fraction form
    45,369.70/68,057.23 = 13,780.81/x
  3. Step 3: Cross multiply
    45,369.70x = 68,057.23 × 13,780.81
  4. Step 4: Simplify right side
    45,369.70x = 937,883,755.76
  5. Step 5: Solve for x
    x = 937,883,755.76/45,369.70
  6. Step 6: Final answer
    x = 20,672.03

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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.