Home / 45,351.44-68,038.86-13,761.68

Finding the Fourth Proportional to 45,351.44, 68,038.86 and 13,761.68

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Solution

The fourth proportional to 45,351.44, 68,038.86 and 13,761.68 is: 20,646.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,351.44 : 68,038.86 = 13,761.68 : x
  2. Step 2: Convert to fraction form
    45,351.44/68,038.86 = 13,761.68/x
  3. Step 3: Cross multiply
    45,351.44x = 68,038.86 × 13,761.68
  4. Step 4: Simplify right side
    45,351.44x = 936,329,018.88
  5. Step 5: Solve for x
    x = 936,329,018.88/45,351.44
  6. Step 6: Final answer
    x = 20,646.07

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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.