Home / 56,074.08-84,084.96-20,991.36

Finding the Fourth Proportional to 56,074.08, 84,084.96 and 20,991.36

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Solution

The fourth proportional to 56,074.08, 84,084.96 and 20,991.36 is: 31,477.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,074.08 : 84,084.96 = 20,991.36 : x
  2. Step 2: Convert to fraction form
    56,074.08/84,084.96 = 20,991.36/x
  3. Step 3: Cross multiply
    56,074.08x = 84,084.96 × 20,991.36
  4. Step 4: Simplify right side
    56,074.08x = 1,765,057,665.95
  5. Step 5: Solve for x
    x = 1,765,057,665.95/56,074.08
  6. Step 6: Final answer
    x = 31,477.25

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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.