Home / 40,723.08-61,084.62-11,139.72

Finding the Fourth Proportional to 40,723.08, 61,084.62 and 11,139.72

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Solution

The fourth proportional to 40,723.08, 61,084.62 and 11,139.72 is: 16,709.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,723.08 : 61,084.62 = 11,139.72 : x
  2. Step 2: Convert to fraction form
    40,723.08/61,084.62 = 11,139.72/x
  3. Step 3: Cross multiply
    40,723.08x = 61,084.62 × 11,139.72
  4. Step 4: Simplify right side
    40,723.08x = 680,465,563.11
  5. Step 5: Solve for x
    x = 680,465,563.11/40,723.08
  6. Step 6: Final answer
    x = 16,709.58

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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.