Home / 50,456.40-75,693.78-20,858.16

Finding the Fourth Proportional to 50,456.40, 75,693.78 and 20,858.16

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Solution

The fourth proportional to 50,456.40, 75,693.78 and 20,858.16 is: 31,291.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,456.40 : 75,693.78 = 20,858.16 : x
  2. Step 2: Convert to fraction form
    50,456.40/75,693.78 = 20,858.16/x
  3. Step 3: Cross multiply
    50,456.40x = 75,693.78 × 20,858.16
  4. Step 4: Simplify right side
    50,456.40x = 1,578,832,974.24
  5. Step 5: Solve for x
    x = 1,578,832,974.24/50,456.40
  6. Step 6: Final answer
    x = 31,291.03

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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.