Home / 55,639.82-83,401.41-20,557.10

Finding the Fourth Proportional to 55,639.82, 83,401.41 and 20,557.10

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Solution

The fourth proportional to 55,639.82, 83,401.41 and 20,557.10 is: 30,814.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,639.82 : 83,401.41 = 20,557.10 : x
  2. Step 2: Convert to fraction form
    55,639.82/83,401.41 = 20,557.10/x
  3. Step 3: Cross multiply
    55,639.82x = 83,401.41 × 20,557.10
  4. Step 4: Simplify right side
    55,639.82x = 1,714,491,125.51
  5. Step 5: Solve for x
    x = 1,714,491,125.51/55,639.82
  6. Step 6: Final answer
    x = 30,814.10

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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.