Home / 54,347.74-81,525.09-18,812.48

Finding the Fourth Proportional to 54,347.74, 81,525.09 and 18,812.48

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Solution

The fourth proportional to 54,347.74, 81,525.09 and 18,812.48 is: 28,219.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,347.74 : 81,525.09 = 18,812.48 : x
  2. Step 2: Convert to fraction form
    54,347.74/81,525.09 = 18,812.48/x
  3. Step 3: Cross multiply
    54,347.74x = 81,525.09 × 18,812.48
  4. Step 4: Simplify right side
    54,347.74x = 1,533,689,125.12
  5. Step 5: Solve for x
    x = 1,533,689,125.12/54,347.74
  6. Step 6: Final answer
    x = 28,219.93

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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.