Home / 55,419.71-83,162.36-20,383.97

Finding the Fourth Proportional to 55,419.71, 83,162.36 and 20,383.97

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Solution

The fourth proportional to 55,419.71, 83,162.36 and 20,383.97 is: 30,588.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,419.71 : 83,162.36 = 20,383.97 : x
  2. Step 2: Convert to fraction form
    55,419.71/83,162.36 = 20,383.97/x
  3. Step 3: Cross multiply
    55,419.71x = 83,162.36 × 20,383.97
  4. Step 4: Simplify right side
    55,419.71x = 1,695,178,686.52
  5. Step 5: Solve for x
    x = 1,695,178,686.52/55,419.71
  6. Step 6: Final answer
    x = 30,588.01

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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.