Home / 55,648.47-83,477.87-20,118.68

Finding the Fourth Proportional to 55,648.47, 83,477.87 and 20,118.68

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Solution

The fourth proportional to 55,648.47, 83,477.87 and 20,118.68 is: 30,179.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,648.47 : 83,477.87 = 20,118.68 : x
  2. Step 2: Convert to fraction form
    55,648.47/83,477.87 = 20,118.68/x
  3. Step 3: Cross multiply
    55,648.47x = 83,477.87 × 20,118.68
  4. Step 4: Simplify right side
    55,648.47x = 1,679,464,367.53
  5. Step 5: Solve for x
    x = 1,679,464,367.53/55,648.47
  6. Step 6: Final answer
    x = 30,179.88

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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.