Home / 52,145.74-78,171.81-18,857.98

Finding the Fourth Proportional to 52,145.74, 78,171.81 and 18,857.98

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Solution

The fourth proportional to 52,145.74, 78,171.81 and 18,857.98 is: 28,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,145.74 : 78,171.81 = 18,857.98 : x
  2. Step 2: Convert to fraction form
    52,145.74/78,171.81 = 18,857.98/x
  3. Step 3: Cross multiply
    52,145.74x = 78,171.81 × 18,857.98
  4. Step 4: Simplify right side
    52,145.74x = 1,474,162,429.54
  5. Step 5: Solve for x
    x = 1,474,162,429.54/52,145.74
  6. Step 6: Final answer
    x = 28,270.05

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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.