Home / 55,872.51-83,861.45-20,368.16

Finding the Fourth Proportional to 55,872.51, 83,861.45 and 20,368.16

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Solution

The fourth proportional to 55,872.51, 83,861.45 and 20,368.16 is: 30,571.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,872.51 : 83,861.45 = 20,368.16 : x
  2. Step 2: Convert to fraction form
    55,872.51/83,861.45 = 20,368.16/x
  3. Step 3: Cross multiply
    55,872.51x = 83,861.45 × 20,368.16
  4. Step 4: Simplify right side
    55,872.51x = 1,708,102,910.28
  5. Step 5: Solve for x
    x = 1,708,102,910.28/55,872.51
  6. Step 6: Final answer
    x = 30,571.44

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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.