Home / 54,487.74-81,729.39-18,957.19

Finding the Fourth Proportional to 54,487.74, 81,729.39 and 18,957.19

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Solution

The fourth proportional to 54,487.74, 81,729.39 and 18,957.19 is: 28,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,487.74 : 81,729.39 = 18,957.19 : x
  2. Step 2: Convert to fraction form
    54,487.74/81,729.39 = 18,957.19/x
  3. Step 3: Cross multiply
    54,487.74x = 81,729.39 × 18,957.19
  4. Step 4: Simplify right side
    54,487.74x = 1,549,359,448.20
  5. Step 5: Solve for x
    x = 1,549,359,448.20/54,487.74
  6. Step 6: Final answer
    x = 28,435.01

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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.