Home / 55,475.60-83,246.36-20,439.84

Finding the Fourth Proportional to 55,475.60, 83,246.36 and 20,439.84

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Solution

The fourth proportional to 55,475.60, 83,246.36 and 20,439.84 is: 30,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,475.60 : 83,246.36 = 20,439.84 : x
  2. Step 2: Convert to fraction form
    55,475.60/83,246.36 = 20,439.84/x
  3. Step 3: Cross multiply
    55,475.60x = 83,246.36 × 20,439.84
  4. Step 4: Simplify right side
    55,475.60x = 1,701,542,278.98
  5. Step 5: Solve for x
    x = 1,701,542,278.98/55,475.60
  6. Step 6: Final answer
    x = 30,671.90

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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.