Home / 56,142.48-84,189.09-21,057.54

Finding the Fourth Proportional to 56,142.48, 84,189.09 and 21,057.54

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Solution

The fourth proportional to 56,142.48, 84,189.09 and 21,057.54 is: 31,577.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,142.48 : 84,189.09 = 21,057.54 : x
  2. Step 2: Convert to fraction form
    56,142.48/84,189.09 = 21,057.54/x
  3. Step 3: Cross multiply
    56,142.48x = 84,189.09 × 21,057.54
  4. Step 4: Simplify right side
    56,142.48x = 1,772,815,130.24
  5. Step 5: Solve for x
    x = 1,772,815,130.24/56,142.48
  6. Step 6: Final answer
    x = 31,577.07

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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.