Home / 54,611.79-81,937.40-19,078.38

Finding the Fourth Proportional to 54,611.79, 81,937.40 and 19,078.38

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Solution

The fourth proportional to 54,611.79, 81,937.40 and 19,078.38 is: 28,624.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,611.79 : 81,937.40 = 19,078.38 : x
  2. Step 2: Convert to fraction form
    54,611.79/81,937.40 = 19,078.38/x
  3. Step 3: Cross multiply
    54,611.79x = 81,937.40 × 19,078.38
  4. Step 4: Simplify right side
    54,611.79x = 1,563,232,758.02
  5. Step 5: Solve for x
    x = 1,563,232,758.02/54,611.79
  6. Step 6: Final answer
    x = 28,624.46

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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.