Home / 54,315.42-81,483.53-18,775.46

Finding the Fourth Proportional to 54,315.42, 81,483.53 and 18,775.46

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Solution

The fourth proportional to 54,315.42, 81,483.53 and 18,775.46 is: 28,166.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,315.42 : 81,483.53 = 18,775.46 : x
  2. Step 2: Convert to fraction form
    54,315.42/81,483.53 = 18,775.46/x
  3. Step 3: Cross multiply
    54,315.42x = 81,483.53 × 18,775.46
  4. Step 4: Simplify right side
    54,315.42x = 1,529,890,758.17
  5. Step 5: Solve for x
    x = 1,529,890,758.17/54,315.42
  6. Step 6: Final answer
    x = 28,166.79

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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.