Home / 55,555.81-83,342.38-18,107.20

Finding the Fourth Proportional to 55,555.81, 83,342.38 and 18,107.20

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Solution

The fourth proportional to 55,555.81, 83,342.38 and 18,107.20 is: 27,163.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,555.81 : 83,342.38 = 18,107.20 : x
  2. Step 2: Convert to fraction form
    55,555.81/83,342.38 = 18,107.20/x
  3. Step 3: Cross multiply
    55,555.81x = 83,342.38 × 18,107.20
  4. Step 4: Simplify right side
    55,555.81x = 1,509,096,635.89
  5. Step 5: Solve for x
    x = 1,509,096,635.89/55,555.81
  6. Step 6: Final answer
    x = 27,163.62

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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.