Home / 55,204.29-82,807.80-20,143.94

Finding the Fourth Proportional to 55,204.29, 82,807.80 and 20,143.94

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Solution

The fourth proportional to 55,204.29, 82,807.80 and 20,143.94 is: 30,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,204.29 : 82,807.80 = 20,143.94 : x
  2. Step 2: Convert to fraction form
    55,204.29/82,807.80 = 20,143.94/x
  3. Step 3: Cross multiply
    55,204.29x = 82,807.80 × 20,143.94
  4. Step 4: Simplify right side
    55,204.29x = 1,668,075,147.71
  5. Step 5: Solve for x
    x = 1,668,075,147.71/55,204.29
  6. Step 6: Final answer
    x = 30,216.40

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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.