Home / 52,016.09-77,977.31-18,712.78

Finding the Fourth Proportional to 52,016.09, 77,977.31 and 18,712.78

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Solution

The fourth proportional to 52,016.09, 77,977.31 and 18,712.78 is: 28,052.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,016.09 : 77,977.31 = 18,712.78 : x
  2. Step 2: Convert to fraction form
    52,016.09/77,977.31 = 18,712.78/x
  3. Step 3: Cross multiply
    52,016.09x = 77,977.31 × 18,712.78
  4. Step 4: Simplify right side
    52,016.09x = 1,459,171,958.51
  5. Step 5: Solve for x
    x = 1,459,171,958.51/52,016.09
  6. Step 6: Final answer
    x = 28,052.32

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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.