Home / 55,137.08-82,732.96-21,856.40

Finding the Fourth Proportional to 55,137.08, 82,732.96 and 21,856.40

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Solution

The fourth proportional to 55,137.08, 82,732.96 and 21,856.40 is: 32,795.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,137.08 : 82,732.96 = 21,856.40 : x
  2. Step 2: Convert to fraction form
    55,137.08/82,732.96 = 21,856.40/x
  3. Step 3: Cross multiply
    55,137.08x = 82,732.96 × 21,856.40
  4. Step 4: Simplify right side
    55,137.08x = 1,808,244,666.94
  5. Step 5: Solve for x
    x = 1,808,244,666.94/55,137.08
  6. Step 6: Final answer
    x = 32,795.44

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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.