Home / 56,145.60-84,233.52-18,711.60

Finding the Fourth Proportional to 56,145.60, 84,233.52 and 18,711.60

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Solution

The fourth proportional to 56,145.60, 84,233.52 and 18,711.60 is: 28,072.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,145.60 : 84,233.52 = 18,711.60 : x
  2. Step 2: Convert to fraction form
    56,145.60/84,233.52 = 18,711.60/x
  3. Step 3: Cross multiply
    56,145.60x = 84,233.52 × 18,711.60
  4. Step 4: Simplify right side
    56,145.60x = 1,576,143,932.83
  5. Step 5: Solve for x
    x = 1,576,143,932.83/56,145.60
  6. Step 6: Final answer
    x = 28,072.44

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1.5x scale

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.