Home / 56,076.14-84,089.62-20,991.20

Finding the Fourth Proportional to 56,076.14, 84,089.62 and 20,991.20

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Solution

The fourth proportional to 56,076.14, 84,089.62 and 20,991.20 is: 31,477.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,076.14 : 84,089.62 = 20,991.20 : x
  2. Step 2: Convert to fraction form
    56,076.14/84,089.62 = 20,991.20/x
  3. Step 3: Cross multiply
    56,076.14x = 84,089.62 × 20,991.20
  4. Step 4: Simplify right side
    56,076.14x = 1,765,141,637.13
  5. Step 5: Solve for x
    x = 1,765,141,637.13/56,076.14
  6. Step 6: Final answer
    x = 31,477.59

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1.5x scale

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.