Home / 56,047.64-84,073.22-20,980.60

Finding the Fourth Proportional to 56,047.64, 84,073.22 and 20,980.60

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Solution

The fourth proportional to 56,047.64, 84,073.22 and 20,980.60 is: 31,471.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,047.64 : 84,073.22 = 20,980.60 : x
  2. Step 2: Convert to fraction form
    56,047.64/84,073.22 = 20,980.60/x
  3. Step 3: Cross multiply
    56,047.64x = 84,073.22 × 20,980.60
  4. Step 4: Simplify right side
    56,047.64x = 1,763,906,599.53
  5. Step 5: Solve for x
    x = 1,763,906,599.53/56,047.64
  6. Step 6: Final answer
    x = 31,471.56

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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.