Home / 55,308.60-82,971.24-20,239.92

Finding the Fourth Proportional to 55,308.60, 82,971.24 and 20,239.92

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Solution

The fourth proportional to 55,308.60, 82,971.24 and 20,239.92 is: 30,362.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,308.60 : 82,971.24 = 20,239.92 : x
  2. Step 2: Convert to fraction form
    55,308.60/82,971.24 = 20,239.92/x
  3. Step 3: Cross multiply
    55,308.60x = 82,971.24 × 20,239.92
  4. Step 4: Simplify right side
    55,308.60x = 1,679,331,259.90
  5. Step 5: Solve for x
    x = 1,679,331,259.90/55,308.60
  6. Step 6: Final answer
    x = 30,362.93

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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.