Home / 54,743.40-82,115.10-42,933.60

Finding the Fourth Proportional to 54,743.40, 82,115.10 and 42,933.60

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Solution

The fourth proportional to 54,743.40, 82,115.10 and 42,933.60 is: 64,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,743.40 : 82,115.10 = 42,933.60 : x
  2. Step 2: Convert to fraction form
    54,743.40/82,115.10 = 42,933.60/x
  3. Step 3: Cross multiply
    54,743.40x = 82,115.10 × 42,933.60
  4. Step 4: Simplify right side
    54,743.40x = 3,525,496,857.36
  5. Step 5: Solve for x
    x = 3,525,496,857.36/54,743.40
  6. Step 6: Final answer
    x = 64,400.40

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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.