Home / 55,129.28-82,643.90-20,044.13

Finding the Fourth Proportional to 55,129.28, 82,643.90 and 20,044.13

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Solution

The fourth proportional to 55,129.28, 82,643.90 and 20,044.13 is: 30,048.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,129.28 : 82,643.90 = 20,044.13 : x
  2. Step 2: Convert to fraction form
    55,129.28/82,643.90 = 20,044.13/x
  3. Step 3: Cross multiply
    55,129.28x = 82,643.90 × 20,044.13
  4. Step 4: Simplify right side
    55,129.28x = 1,656,524,561.87
  5. Step 5: Solve for x
    x = 1,656,524,561.87/55,129.28
  6. Step 6: Final answer
    x = 30,048.00

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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.