Home / 54,405.17-81,558.50-19,336.62

Finding the Fourth Proportional to 54,405.17, 81,558.50 and 19,336.62

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Solution

The fourth proportional to 54,405.17, 81,558.50 and 19,336.62 is: 28,987.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,405.17 : 81,558.50 = 19,336.62 : x
  2. Step 2: Convert to fraction form
    54,405.17/81,558.50 = 19,336.62/x
  3. Step 3: Cross multiply
    54,405.17x = 81,558.50 × 19,336.62
  4. Step 4: Simplify right side
    54,405.17x = 1,577,065,931.43
  5. Step 5: Solve for x
    x = 1,577,065,931.43/54,405.17
  6. Step 6: Final answer
    x = 28,987.43

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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.