Home / 40,709.10-61,072.37-12,628.55

Finding the Fourth Proportional to 40,709.10, 61,072.37 and 12,628.55

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Solution

The fourth proportional to 40,709.10, 61,072.37 and 12,628.55 is: 18,945.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,709.10 : 61,072.37 = 12,628.55 : x
  2. Step 2: Convert to fraction form
    40,709.10/61,072.37 = 12,628.55/x
  3. Step 3: Cross multiply
    40,709.10x = 61,072.37 × 12,628.55
  4. Step 4: Simplify right side
    40,709.10x = 771,255,478.16
  5. Step 5: Solve for x
    x = 771,255,478.16/40,709.10
  6. Step 6: Final answer
    x = 18,945.53

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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.