Home / 54,559.21-81,829.70-15,120.31

Finding the Fourth Proportional to 54,559.21, 81,829.70 and 15,120.31

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Solution

The fourth proportional to 54,559.21, 81,829.70 and 15,120.31 is: 22,677.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,559.21 : 81,829.70 = 15,120.31 : x
  2. Step 2: Convert to fraction form
    54,559.21/81,829.70 = 15,120.31/x
  3. Step 3: Cross multiply
    54,559.21x = 81,829.70 × 15,120.31
  4. Step 4: Simplify right side
    54,559.21x = 1,237,289,946.46
  5. Step 5: Solve for x
    x = 1,237,289,946.46/54,559.21
  6. Step 6: Final answer
    x = 22,677.93

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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.