Home / 54,520.76-81,780.87-14,539.67

Finding the Fourth Proportional to 54,520.76, 81,780.87 and 14,539.67

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Solution

The fourth proportional to 54,520.76, 81,780.87 and 14,539.67 is: 21,809.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,520.76 : 81,780.87 = 14,539.67 : x
  2. Step 2: Convert to fraction form
    54,520.76/81,780.87 = 14,539.67/x
  3. Step 3: Cross multiply
    54,520.76x = 81,780.87 × 14,539.67
  4. Step 4: Simplify right side
    54,520.76x = 1,189,066,814.41
  5. Step 5: Solve for x
    x = 1,189,066,814.41/54,520.76
  6. Step 6: Final answer
    x = 21,809.43

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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.