Home / 52,137.70-78,206.56-18,857.02

Finding the Fourth Proportional to 52,137.70, 78,206.56 and 18,857.02

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Solution

The fourth proportional to 52,137.70, 78,206.56 and 18,857.02 is: 28,285.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,137.70 : 78,206.56 = 18,857.02 : x
  2. Step 2: Convert to fraction form
    52,137.70/78,206.56 = 18,857.02/x
  3. Step 3: Cross multiply
    52,137.70x = 78,206.56 × 18,857.02
  4. Step 4: Simplify right side
    52,137.70x = 1,474,742,666.05
  5. Step 5: Solve for x
    x = 1,474,742,666.05/52,137.70
  6. Step 6: Final answer
    x = 28,285.53

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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.